From 9b02b9bf92fae109056375d5ed831671a8b14e47 Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Thu, 6 Feb 2025 17:30:10 -0500
Subject: [PATCH 01/22] add 4D case with a single z-plane

---
 fastplotlib/tools/_histogram_lut.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/fastplotlib/tools/_histogram_lut.py b/fastplotlib/tools/_histogram_lut.py
index b8c6633a8..9cda73ed7 100644
--- a/fastplotlib/tools/_histogram_lut.py
+++ b/fastplotlib/tools/_histogram_lut.py
@@ -193,7 +193,17 @@ def _fpl_add_plot_area_hook(self, plot_area):
         self._plot_area.controller.enabled = True
 
     def _calculate_histogram(self, data):
-        if data.ndim > 2:
+        if data.ndim > 3:
+            # subsample to a single z-slice, max of 500 x 100 x 100
+            # dim0 is usually time, allow max of 500 timepoints
+            # dim1 in a 4D dataset is usually z, take a single z
+            ss0 = max(1, int(data.shape[0] / 500))
+            ss2 = max(1, int(data.shape[2] / 100))
+            ss3 = max(1, int(data.shape[3] / 100))
+            data_ss = data[::ss0, 0, ::ss2, ::ss3]
+            hist, edges = np.histogram(data_ss, bins=self._nbins)
+
+        elif data.ndim > 2:
             # subsample to max of 500 x 100 x 100,
             # np.histogram takes ~30ms with this size on a 8 core Ryzen laptop
             # dim0 is usually time, allow max of 500 timepoints

From a52f9fa5f4af7cf082f50bcb60a233c07f656b5c Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Fri, 21 Feb 2025 21:06:07 -0500
Subject: [PATCH 02/22] add subsample_array function

---
 fastplotlib/utils/functions.py | 39 ++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index 910eba8e8..b295a8ec7 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -405,3 +405,42 @@ def parse_cmap_values(
         colors = np.vstack([colormap[val] for val in norm_cmap_values])
 
         return colors
+
+
+def subsample_array(arr, max_items=1e6):
+    """
+    Subsamples an input array while preserving its relative dimensional proportions.
+
+    Parameters
+    ----------
+    arr : np.ndarray
+        Input array of any dimensionality to be subsampled.
+
+    max_items : int, optional
+        Largest bytesize allowed for the total size of the subsampled array. Default is 1e6.
+
+    Returns
+    -------
+    np.ndarray
+        subsampled version of the input array
+    """
+    shape = np.array(arr.shape)
+    total_elements = np.prod(shape)
+
+    if total_elements <= max_items:
+        return arr  # no need to subsample if already below the threshold
+
+    # relative proportions based on the shape
+    proportions = shape / shape.sum()
+
+    target_elements = min(total_elements, max_items)
+    target_shape = np.maximum((proportions * target_elements).astype(int), 1)
+
+    # keep total elements within limit
+    scale_factor = (target_elements / np.prod(target_shape)) ** (1 / len(shape))
+    target_shape = np.maximum((target_shape * scale_factor).astype(int), 1)
+
+    steps = np.ceil(shape / target_shape).astype(int)
+    slices = tuple(slice(None, None, step) for step in steps)
+
+    return arr[slices]

From a34d4fe7372ad652520b7c5da4059f0d73f4a32f Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Fri, 21 Feb 2025 21:06:29 -0500
Subject: [PATCH 03/22] use new subsample_array function

---
 fastplotlib/tools/_histogram_lut.py | 35 ++++-------------------------
 1 file changed, 4 insertions(+), 31 deletions(-)

diff --git a/fastplotlib/tools/_histogram_lut.py b/fastplotlib/tools/_histogram_lut.py
index 9cda73ed7..bb77ce1cf 100644
--- a/fastplotlib/tools/_histogram_lut.py
+++ b/fastplotlib/tools/_histogram_lut.py
@@ -5,6 +5,7 @@
 
 import pygfx
 
+from ..utils.functions import subsample_array
 from ..graphics import LineGraphic, ImageGraphic, TextGraphic
 from ..graphics.utils import pause_events
 from ..graphics._base import Graphic
@@ -193,38 +194,10 @@ def _fpl_add_plot_area_hook(self, plot_area):
         self._plot_area.controller.enabled = True
 
     def _calculate_histogram(self, data):
-        if data.ndim > 3:
-            # subsample to a single z-slice, max of 500 x 100 x 100
-            # dim0 is usually time, allow max of 500 timepoints
-            # dim1 in a 4D dataset is usually z, take a single z
-            ss0 = max(1, int(data.shape[0] / 500))
-            ss2 = max(1, int(data.shape[2] / 100))
-            ss3 = max(1, int(data.shape[3] / 100))
-            data_ss = data[::ss0, 0, ::ss2, ::ss3]
-            hist, edges = np.histogram(data_ss, bins=self._nbins)
-
-        elif data.ndim > 2:
-            # subsample to max of 500 x 100 x 100,
-            # np.histogram takes ~30ms with this size on a 8 core Ryzen laptop
-            # dim0 is usually time, allow max of 500 timepoints
-            ss0 = max(1, int(data.shape[0] / 500))  # max to prevent step = 0
-            # allow max of 100 for x and y if ndim > 2
-            ss1 = max(1, int(data.shape[1] / 100))
-            ss2 = max(1, int(data.shape[2] / 100))
-
-            data_ss = data[::ss0, ::ss1, ::ss2]
-
-            hist, edges = np.histogram(data_ss, bins=self._nbins)
 
-        else:
-            # allow max of 1000 x 1000
-            # this takes ~4ms on a 8 core Ryzen laptop
-            ss0 = max(1, int(data.shape[0] / 1_000))
-            ss1 = max(1, int(data.shape[1] / 1_000))
-
-            data_ss = data[::ss0, ::ss1]
-
-            hist, edges = np.histogram(data_ss, bins=self._nbins)
+        # get a subsampled view of this array
+        data_ss = subsample_array(data, max_items=1e6)  # 1e6 is default
+        hist, edges = np.histogram(data_ss, bins=self._nbins)
 
         # used if data ptp <= 10 because event things get weird
         # with tiny world objects due to floating point error

From d98c14f4dc63f864e272067cbb7eb9c6aa3522cf Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 12:38:19 -0500
Subject: [PATCH 04/22] remove redundant target_elements from subsample

---
 fastplotlib/utils/functions.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index b295a8ec7..d65ace621 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -432,12 +432,10 @@ def subsample_array(arr, max_items=1e6):
 
     # relative proportions based on the shape
     proportions = shape / shape.sum()
-
-    target_elements = min(total_elements, max_items)
-    target_shape = np.maximum((proportions * target_elements).astype(int), 1)
+    target_shape = np.maximum((proportions * total_elements).astype(int), 1)
 
     # keep total elements within limit
-    scale_factor = (target_elements / np.prod(target_shape)) ** (1 / len(shape))
+    scale_factor = (total_elements / np.prod(target_shape)) ** (1 / len(shape))
     target_shape = np.maximum((target_shape * scale_factor).astype(int), 1)
 
     steps = np.ceil(shape / target_shape).astype(int)

From a67326fa8b077bb4aa4a25533d61359265462251 Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 12:39:15 -0500
Subject: [PATCH 05/22] import utils from __all__

---
 fastplotlib/tools/_histogram_lut.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fastplotlib/tools/_histogram_lut.py b/fastplotlib/tools/_histogram_lut.py
index bb77ce1cf..dd9c96ca7 100644
--- a/fastplotlib/tools/_histogram_lut.py
+++ b/fastplotlib/tools/_histogram_lut.py
@@ -5,7 +5,7 @@
 
 import pygfx
 
-from ..utils.functions import subsample_array
+from ..utils import subsample_array
 from ..graphics import LineGraphic, ImageGraphic, TextGraphic
 from ..graphics.utils import pause_events
 from ..graphics._base import Graphic

From c7e0102879fb8e9396746772d024b86c0c87234e Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 12:40:33 -0500
Subject: [PATCH 06/22] rename subsample vars using standard numpy names

---
 fastplotlib/utils/functions.py | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index d65ace621..dbbc24460 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -424,21 +424,21 @@ def subsample_array(arr, max_items=1e6):
     np.ndarray
         subsampled version of the input array
     """
-    shape = np.array(arr.shape)
-    total_elements = np.prod(shape)
+    array_shape = np.array(arr.shape)
+    array_size = np.prod(array_shape)
 
-    if total_elements <= max_items:
+    if array_size <= max_items:
         return arr  # no need to subsample if already below the threshold
 
     # relative proportions based on the shape
-    proportions = shape / shape.sum()
-    target_shape = np.maximum((proportions * total_elements).astype(int), 1)
+    proportions = array_shape / array_shape.sum()
+    target_shape = np.maximum((proportions * array_size).astype(int), 1)
 
     # keep total elements within limit
-    scale_factor = (total_elements / np.prod(target_shape)) ** (1 / len(shape))
+    scale_factor = (array_size / np.prod(target_shape)) ** (1 / len(array_shape))
     target_shape = np.maximum((target_shape * scale_factor).astype(int), 1)
 
-    steps = np.ceil(shape / target_shape).astype(int)
+    steps = np.ceil(array_shape / target_shape).astype(int)
     slices = tuple(slice(None, None, step) for step in steps)
 
     return arr[slices]

From 991b544fd4672a3fd26b5c1d9b8a84a7e6ec52ab Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 12:41:05 -0500
Subject: [PATCH 07/22] subsample max_items -> max_size

---
 fastplotlib/tools/_histogram_lut.py | 2 +-
 fastplotlib/utils/functions.py      | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fastplotlib/tools/_histogram_lut.py b/fastplotlib/tools/_histogram_lut.py
index dd9c96ca7..cb4dc5c8c 100644
--- a/fastplotlib/tools/_histogram_lut.py
+++ b/fastplotlib/tools/_histogram_lut.py
@@ -196,7 +196,7 @@ def _fpl_add_plot_area_hook(self, plot_area):
     def _calculate_histogram(self, data):
 
         # get a subsampled view of this array
-        data_ss = subsample_array(data, max_items=1e6)  # 1e6 is default
+        data_ss = subsample_array(data, max_size=1e6)  # 1e6 is default
         hist, edges = np.histogram(data_ss, bins=self._nbins)
 
         # used if data ptp <= 10 because event things get weird
diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index dbbc24460..8c4d592c9 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -407,7 +407,7 @@ def parse_cmap_values(
         return colors
 
 
-def subsample_array(arr, max_items=1e6):
+def subsample_array(arr, max_size=1e6):
     """
     Subsamples an input array while preserving its relative dimensional proportions.
 
@@ -416,7 +416,7 @@ def subsample_array(arr, max_items=1e6):
     arr : np.ndarray
         Input array of any dimensionality to be subsampled.
 
-    max_items : int, optional
+    max_size : int, optional
         Largest bytesize allowed for the total size of the subsampled array. Default is 1e6.
 
     Returns
@@ -427,7 +427,7 @@ def subsample_array(arr, max_items=1e6):
     array_shape = np.array(arr.shape)
     array_size = np.prod(array_shape)
 
-    if array_size <= max_items:
+    if array_size <= max_size:
         return arr  # no need to subsample if already below the threshold
 
     # relative proportions based on the shape

From 6d212bcae648ab2585d35bb3f1ba83ddba11c061 Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 12:42:47 -0500
Subject: [PATCH 08/22] largest bytesize -> largest array size, lowercase
 errrrything

---
 fastplotlib/utils/functions.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index 8c4d592c9..6d65471c3 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -409,15 +409,15 @@ def parse_cmap_values(
 
 def subsample_array(arr, max_size=1e6):
     """
-    Subsamples an input array while preserving its relative dimensional proportions.
+    subsamples an input array while preserving its relative dimensional proportions.
 
     Parameters
     ----------
     arr : np.ndarray
-        Input array of any dimensionality to be subsampled.
+        input array of any dimensionality to be subsampled.
 
     max_size : int, optional
-        Largest bytesize allowed for the total size of the subsampled array. Default is 1e6.
+        largest array size allowed in the subsampled array. Default is 1e6.
 
     Returns
     -------

From 20333ab88893388826297e6af206301e5ce1de58 Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 13:16:26 -0500
Subject: [PATCH 09/22] use subsample_array in quick_min_max

---
 fastplotlib/utils/functions.py | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index 6d65471c3..37e5279ac 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -267,7 +267,7 @@ def make_colors_dict(labels: Sequence, cmap: str, **kwargs) -> OrderedDict:
     return OrderedDict(zip(labels, colors))
 
 
-def quick_min_max(data: np.ndarray) -> tuple[float, float]:
+def quick_min_max(data: np.ndarray, max_size=1e6) -> tuple[float, float]:
     """
     Adapted from pyqtgraph.ImageView.
     Estimate the min/max values of *data* by subsampling.
@@ -276,6 +276,9 @@ def quick_min_max(data: np.ndarray) -> tuple[float, float]:
     ----------
     data: np.ndarray or array-like with `min` and `max` attributes
 
+    max_size : int, optional
+        largest array size allowed in the subsampled array. Default is 1e6.
+
     Returns
     -------
     (float, float)
@@ -289,11 +292,7 @@ def quick_min_max(data: np.ndarray) -> tuple[float, float]:
         ):
             return data.min, data.max
 
-    while np.prod(data.shape) > 1e6:
-        ax = np.argmax(data.shape)
-        sl = [slice(None)] * data.ndim
-        sl[ax] = slice(None, None, 2)
-        data = data[tuple(sl)]
+    data = subsample_array(data, max_size=max_size)
 
     return float(np.nanmin(data)), float(np.nanmax(data))
 

From 4450195ca0f130aa8ac88a87ffd02ab1a6704a37 Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Sat, 22 Feb 2025 15:49:42 -0500
Subject: [PATCH 10/22] make 1e6 int

---
 fastplotlib/tools/_histogram_lut.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fastplotlib/tools/_histogram_lut.py b/fastplotlib/tools/_histogram_lut.py
index cb4dc5c8c..aeb8dd996 100644
--- a/fastplotlib/tools/_histogram_lut.py
+++ b/fastplotlib/tools/_histogram_lut.py
@@ -196,7 +196,7 @@ def _fpl_add_plot_area_hook(self, plot_area):
     def _calculate_histogram(self, data):
 
         # get a subsampled view of this array
-        data_ss = subsample_array(data, max_size=1e6)  # 1e6 is default
+        data_ss = subsample_array(data, max_size=int(1e6))  # 1e6 is default
         hist, edges = np.histogram(data_ss, bins=self._nbins)
 
         # used if data ptp <= 10 because event things get weird

From f65d9eb1002e6026f5f0b1e00799477fbd3dadf6 Mon Sep 17 00:00:00 2001
From: Flynn <Flynnoconnell@gmail.com>
Date: Fri, 28 Feb 2025 14:09:32 -0500
Subject: [PATCH 11/22] update png from artifact (imgui-screenshots)

---
 examples/screenshots/image_widget_grid.png | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/screenshots/image_widget_grid.png b/examples/screenshots/image_widget_grid.png
index e0f0ff5c8..607f86dad 100644
--- a/examples/screenshots/image_widget_grid.png
+++ b/examples/screenshots/image_widget_grid.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:eeb5b86e7c15dfe2e71267453426930200223026f72156f34ff1ccc2f9389b6e
-size 253769
+oid sha256:d878351c85b2186c864bcf1bb5f0d08318d21a0b4144c7fe549d702aa1b5ebda
+size 252758

From fc996a14dbb7a0be09a7ae56b3e8ccfaee7279c8 Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Sun, 6 Apr 2025 19:35:35 -0400
Subject: [PATCH 12/22] fix subsample array

---
 fastplotlib/utils/functions.py | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index 37e5279ac..464a69d5d 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -406,7 +406,7 @@ def parse_cmap_values(
         return colors
 
 
-def subsample_array(arr, max_size=1e6):
+def subsample_array(arr: np.ndarray, max_size: int=1e6):
     """
     subsamples an input array while preserving its relative dimensional proportions.
 
@@ -415,29 +415,15 @@ def subsample_array(arr, max_size=1e6):
     arr : np.ndarray
         input array of any dimensionality to be subsampled.
 
-    max_size : int, optional
-        largest array size allowed in the subsampled array. Default is 1e6.
-
     Returns
     -------
     np.ndarray
         subsampled version of the input array
     """
-    array_shape = np.array(arr.shape)
-    array_size = np.prod(array_shape)
-
-    if array_size <= max_size:
+    if np.prod(arr.shape) <= max_size:
         return arr  # no need to subsample if already below the threshold
 
-    # relative proportions based on the shape
-    proportions = array_shape / array_shape.sum()
-    target_shape = np.maximum((proportions * array_size).astype(int), 1)
-
-    # keep total elements within limit
-    scale_factor = (array_size / np.prod(target_shape)) ** (1 / len(array_shape))
-    target_shape = np.maximum((target_shape * scale_factor).astype(int), 1)
-
-    steps = np.ceil(array_shape / target_shape).astype(int)
-    slices = tuple(slice(None, None, step) for step in steps)
-
-    return arr[slices]
+    f = np.power((np.prod(arr.shape) / 1e6), 1.0 / arr.ndim)
+    ns = np.floor(np.array(arr.shape) / f).clip(min=1)
+    slices = tuple(slice(None, None, int(s)) for s in np.floor(arr.shape / ns).astype(int))
+    return np.asarray(arr[slices])

From 4be2eaaf5810e42f95c26f18f63774ce62eff41a Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Sun, 6 Apr 2025 20:35:20 -0400
Subject: [PATCH 13/22] bring back original image_widget_grid

---
 examples/screenshots/image_widget_grid.png | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/screenshots/image_widget_grid.png b/examples/screenshots/image_widget_grid.png
index 607f86dad..e0f0ff5c8 100644
--- a/examples/screenshots/image_widget_grid.png
+++ b/examples/screenshots/image_widget_grid.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d878351c85b2186c864bcf1bb5f0d08318d21a0b4144c7fe549d702aa1b5ebda
-size 252758
+oid sha256:eeb5b86e7c15dfe2e71267453426930200223026f72156f34ff1ccc2f9389b6e
+size 253769

From 6fb06ab0ce22860d22ffa3004dcb2774b598cbf5 Mon Sep 17 00:00:00 2001
From: Kushal Kolar <kushalkolar@gmail.com>
Date: Sun, 6 Apr 2025 23:08:46 -0400
Subject: [PATCH 14/22] Update functions.py

---
 fastplotlib/utils/functions.py | 44 ++++++++++++++++++++++++++++++----
 1 file changed, 39 insertions(+), 5 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index 464a69d5d..6dc27c317 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -406,24 +406,58 @@ def parse_cmap_values(
         return colors
 
 
-def subsample_array(arr: np.ndarray, max_size: int=1e6):
+def subsample_array(arr: np.ndarray, max_size: int = 1e6):
     """
-    subsamples an input array while preserving its relative dimensional proportions.
+    Subsamples an input array while preserving its relative dimensional proportions.
 
+    The dimensions (shape) of the array can be represented as:
+
+    .. math::
+
+        [d_1, d_2, \\dots d_n]
+
+    The product of the dimensions can be represented as:
+
+    .. math::
+
+        \\prod_{i=1}^{n} d_i
+
+    To find the factor ``f`` by which to divide the size of each dimension in order to 
+    get max_size ``s`` we must solve for ``f`` in the following expression:
+
+    .. math::
+
+        \\prod_{i=1}^{n} \\frac{d_i}{\\mathbf{f}} = \\mathbf{s}
+
+    The solution for ``f`` is is simply the nth root of the product of the dims divided by the max_size 
+    where n is the number of dimensions
+
+    .. math::
+
+        \\mathbf{f} = \\sqrt[n]{\\frac{\\prod_{i=1}^{n} d_i}{\\mathbf{s}}}
+        
     Parameters
     ----------
-    arr : np.ndarray
+    arr: np.ndarray
         input array of any dimensionality to be subsampled.
 
+    max_size: int, default 1e6
+        maximum number of elements in subsampled array
+
     Returns
     -------
     np.ndarray
-        subsampled version of the input array
+        subsample of the input array
     """
     if np.prod(arr.shape) <= max_size:
         return arr  # no need to subsample if already below the threshold
 
-    f = np.power((np.prod(arr.shape) / 1e6), 1.0 / arr.ndim)
+    # get factor by which to divide all dims
+    f = np.power((np.prod(arr.shape) / max_size), 1.0 / arr.ndim)
+
+    # new shape for subsampled array
     ns = np.floor(np.array(arr.shape) / f).clip(min=1)
+
+    # get the step size for the slices
     slices = tuple(slice(None, None, int(s)) for s in np.floor(arr.shape / ns).astype(int))
     return np.asarray(arr[slices])

From 1311e21c489bc66e20bc6ec61211d6440715927a Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Tue, 8 Apr 2025 18:07:17 -0400
Subject: [PATCH 15/22] revert image_widget_grid from regenerate

---
 examples/screenshots/image_widget_grid.png | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/screenshots/image_widget_grid.png b/examples/screenshots/image_widget_grid.png
index e0f0ff5c8..a00c4c46b 100644
--- a/examples/screenshots/image_widget_grid.png
+++ b/examples/screenshots/image_widget_grid.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:eeb5b86e7c15dfe2e71267453426930200223026f72156f34ff1ccc2f9389b6e
-size 253769
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+size 252826

From 608545d1ecc0c4fb15cd31d5c52f84908912ec93 Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Tue, 8 Apr 2025 18:30:34 -0400
Subject: [PATCH 16/22] hopefully the correct screenshot

---
 examples/screenshots/image_widget_grid.png | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/screenshots/image_widget_grid.png b/examples/screenshots/image_widget_grid.png
index a00c4c46b..16d8ead08 100644
--- a/examples/screenshots/image_widget_grid.png
+++ b/examples/screenshots/image_widget_grid.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:4b5e3af8a96ae7c63ccd3022d65befc5a342dfda1faa200f9f583e3ce58eda5d
-size 252826
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+size 248046

From af9051e2d95b2223574508e46c0f1d813f4ab3be Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Tue, 8 Apr 2025 18:32:33 -0400
Subject: [PATCH 17/22] black

---
 fastplotlib/utils/functions.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/fastplotlib/utils/functions.py b/fastplotlib/utils/functions.py
index 31ce8a8f3..e775288d3 100644
--- a/fastplotlib/utils/functions.py
+++ b/fastplotlib/utils/functions.py
@@ -422,20 +422,20 @@ def subsample_array(arr: np.ndarray, max_size: int = 1e6):
 
         \\prod_{i=1}^{n} d_i
 
-    To find the factor ``f`` by which to divide the size of each dimension in order to 
+    To find the factor ``f`` by which to divide the size of each dimension in order to
     get max_size ``s`` we must solve for ``f`` in the following expression:
 
     .. math::
 
         \\prod_{i=1}^{n} \\frac{d_i}{\\mathbf{f}} = \\mathbf{s}
 
-    The solution for ``f`` is is simply the nth root of the product of the dims divided by the max_size 
+    The solution for ``f`` is is simply the nth root of the product of the dims divided by the max_size
     where n is the number of dimensions
 
     .. math::
 
         \\mathbf{f} = \\sqrt[n]{\\frac{\\prod_{i=1}^{n} d_i}{\\mathbf{s}}}
-        
+
     Parameters
     ----------
     arr: np.ndarray
@@ -459,5 +459,7 @@ def subsample_array(arr: np.ndarray, max_size: int = 1e6):
     ns = np.floor(np.array(arr.shape) / f).clip(min=1)
 
     # get the step size for the slices
-    slices = tuple(slice(None, None, int(s)) for s in np.floor(arr.shape / ns).astype(int))
+    slices = tuple(
+        slice(None, None, int(s)) for s in np.floor(arr.shape / ns).astype(int)
+    )
     return np.asarray(arr[slices])

From b2b4a81ae6662002a18a91a233526e1f5713963b Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Tue, 8 Apr 2025 18:57:43 -0400
Subject: [PATCH 18/22] replace iw-zfish-grid-qreplace
 nb-iw-zfish-grid-init-mw5 to see

---
 .../nb-image-widget-zfish-grid-init-mean-window-5.png         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/notebooks/screenshots/nb-image-widget-zfish-grid-init-mean-window-5.png b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-init-mean-window-5.png
index 0745a4d4a..61702a6d9 100644
--- a/examples/notebooks/screenshots/nb-image-widget-zfish-grid-init-mean-window-5.png
+++ b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-init-mean-window-5.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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-size 112646
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+size 111155

From 66371a9d74e4dbe1aef7ca0670db11a831c69337 Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Tue, 8 Apr 2025 19:21:32 -0400
Subject: [PATCH 19/22] replace nb-image-widget screenshots

---
 .../screenshots/nb-image-widget-movie-single-0-reset.png      | 4 ++--
 .../notebooks/screenshots/nb-image-widget-movie-single-0.png  | 4 ++--
 .../screenshots/nb-image-widget-movie-single-279.png          | 4 ++--
 .../nb-image-widget-movie-single-50-window-max-33.png         | 4 ++--
 .../nb-image-widget-movie-single-50-window-mean-13.png        | 4 ++--
 .../nb-image-widget-movie-single-50-window-mean-33.png        | 4 ++--
 .../nb-image-widget-movie-single-50-window-reset.png          | 4 ++--
 .../notebooks/screenshots/nb-image-widget-movie-single-50.png | 4 ++--
 .../nb-image-widget-zfish-frame-50-frame-apply-gaussian.png   | 4 ++--
 .../nb-image-widget-zfish-frame-50-frame-apply-reset.png      | 4 ++--
 .../nb-image-widget-zfish-frame-50-max-window-13.png          | 4 ++--
 .../nb-image-widget-zfish-frame-50-mean-window-13.png         | 4 ++--
 .../nb-image-widget-zfish-frame-50-mean-window-5.png          | 4 ++--
 .../notebooks/screenshots/nb-image-widget-zfish-frame-50.png  | 4 ++--
 .../notebooks/screenshots/nb-image-widget-zfish-frame-99.png  | 4 ++--
 ...-image-widget-zfish-grid-frame-50-frame-apply-gaussian.png | 4 ++--
 .../nb-image-widget-zfish-grid-frame-50-frame-apply-reset.png | 4 ++--
 .../nb-image-widget-zfish-grid-frame-50-max-window-13.png     | 4 ++--
 .../nb-image-widget-zfish-grid-frame-50-mean-window-13.png    | 4 ++--
 .../screenshots/nb-image-widget-zfish-grid-frame-50.png       | 4 ++--
 .../screenshots/nb-image-widget-zfish-grid-frame-99.png       | 4 ++--
 ...b-image-widget-zfish-grid-set_data-reset-indices-false.png | 4 ++--
 ...nb-image-widget-zfish-grid-set_data-reset-indices-true.png | 4 ++--
 .../screenshots/nb-image-widget-zfish-init-mean-window-5.png  | 4 ++--
 .../nb-image-widget-zfish-mixed-rgb-cockatoo-frame-50.png     | 4 ++--
 .../nb-image-widget-zfish-mixed-rgb-cockatoo-set-data.png     | 4 ++--
 .../nb-image-widget-zfish-mixed-rgb-cockatoo-windowrgb.png    | 4 ++--
 27 files changed, 54 insertions(+), 54 deletions(-)

diff --git a/examples/notebooks/screenshots/nb-image-widget-movie-single-0-reset.png b/examples/notebooks/screenshots/nb-image-widget-movie-single-0-reset.png
index bb2e1ee37..0129cb423 100644
--- a/examples/notebooks/screenshots/nb-image-widget-movie-single-0-reset.png
+++ b/examples/notebooks/screenshots/nb-image-widget-movie-single-0-reset.png
@@ -1,3 +1,3 @@
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index bb2e1ee37..0129cb423 100644
--- a/examples/notebooks/screenshots/nb-image-widget-movie-single-0.png
+++ b/examples/notebooks/screenshots/nb-image-widget-movie-single-0.png
@@ -1,3 +1,3 @@
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index 1841cd237..4908c8b59 100644
--- a/examples/notebooks/screenshots/nb-image-widget-movie-single-279.png
+++ b/examples/notebooks/screenshots/nb-image-widget-movie-single-279.png
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+++ b/examples/notebooks/screenshots/nb-image-widget-movie-single-50-window-max-33.png
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index 3865aef93..92513cf5b 100644
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+++ b/examples/notebooks/screenshots/nb-image-widget-movie-single-50-window-mean-13.png
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index 025086930..8bce59baf 100644
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From eb37f2501838e3bea7613924f6853849b8df393d Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Tue, 8 Apr 2025 22:28:18 -0400
Subject: [PATCH 20/22] force git to refresh

---
 .../nb-image-widget-zfish-grid-frame-50-mean-window-5.png      | 3 ---
 1 file changed, 3 deletions(-)
 delete mode 100644 examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png

diff --git a/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png
deleted file mode 100644
index 00a4a1fd2..000000000
--- a/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
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From 4c245d3703063a078894d343997043399ca0002f Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Wed, 9 Apr 2025 21:34:56 -0400
Subject: [PATCH 21/22] nb-iw from regen screenshots

---
 .../nb-image-widget-zfish-grid-frame-50-mean-window-5.png      | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png

diff --git a/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png
new file mode 100644
index 000000000..00a4a1fd2
--- /dev/null
+++ b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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From 8a785c188ff5be237c7c7c1e9137daf7b7996dee Mon Sep 17 00:00:00 2001
From: Flynn OConnell <flynnoconnell@gmail.com>
Date: Thu, 10 Apr 2025 13:44:08 -0400
Subject: [PATCH 22/22] plzplzplzplzplz work

---
 .../nb-image-widget-zfish-grid-frame-50-mean-window-5.png     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png
index 00a4a1fd2..28bab9f02 100644
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+++ b/examples/notebooks/screenshots/nb-image-widget-zfish-grid-frame-50-mean-window-5.png
@@ -1,3 +1,3 @@
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