JPH04143868A - Picture processing method - Google Patents

Abstract

PURPOSE:To quickly obtain a desired picture by setting a specific area on a CRT based on a specific point designated on an original picture and subjecting this specific area to desired picture processing. CONSTITUTION:An original picture 44 is displayed on a CRT display device 20, and a mouse 24 is used to designate a specific point 46 in the center of an area, which should be subjected to desired picture processing, on the original picture 44. The diameter of a circle having the specific point 46 as the center is adjusted by the mouse 24 to set a specific area 50 surrounded with the circle 48. In this case, the specific area on the original picture 44 should be subjected to area on the original picture 44 should be subjected to desired picture processing and is arbitrarily adjusted by the mouse 24. Thus, a desired picture processing range is easily set.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing method that can set a specific area in an original image and perform desired image processing on the image within this area.

[Prior Art] Various methods have been proposed to obtain a desired image by performing image processing such as gradation correction and edge enhancement on an original image read by an image scanner or the like. In this case, if image processing is uniformly performed without specifying the processing range for the original image, some parts will be appropriately processed and some parts will not be.

Therefore, for example, it is read with an image scanner etc.
A method has been proposed in which a processing portion of an original image displayed on a CRT is specified using a light pen or the like, and desired image processing is performed on that portion.

[Problems to be Solved by the Invention] However, in the above method, although desired image processing can be performed on a specific range, there is a drawback that specifying the specific range is extremely troublesome.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an image processing method in which it is extremely easy to specify an image processing range for an original image, and thereby a desired image can be quickly obtained.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an image processing method for performing desired image processing on a specific area of an original image, including displaying the original image on a CRT. At the same time, a specific point and a specific area determined by parameters are displayed in an overlapping manner.
Next, after setting a desired specific area on the CRT by changing the specific point and parameters, desired image processing is performed on the specific area.

U Effect As described above, in the image processing method according to the present invention, the CRT
A specific area is set based on the specific point specified in the original image above, and desired image processing can be performed on this specific area.

In the second case, it is extremely easy to set the specific area, thereby making it possible to quickly obtain a desired image.

[Examples] The image processing method according to the present invention will be described in detail below by giving examples and referring to the accompanying drawings.

FIG. 1 shows a schematic configuration of an apparatus to which the image processing method of this embodiment is applied.

In the figure, reference numeral 10 indicates an image processing device, and this image processing device 10 is connected to a CC via an A/D converter 12.
The D camera 14 is connected, and the console 16 is also connected. CCD camera 14 has RGB switching filter 1
8, the original image recorded on the document S is read.

The console 16 includes a CRT display 20, a keyboard 22, and a mouse 24, and gives desired instructions to the image processing apparatus 1O based on the original image displayed on the CRT display 20 or a processed image to be described later.

The image processing device 10 includes a CPU 26, a ROM 2g, a processing condition storage section 30. LTJ front storage unit 32, original image storage a34
R134G134B, a mask storage section 36, and a processed image storage section 38R138G138B, which are connected to the bus 40.

Note that a printer 42 is connected to the bus 40 for outputting the processed image as a hard copy.

The CPU 26 controls the entire image processing device 10, and
The OM 28 holds a program that defines the processing procedure in the CPU 26. The processing condition storage unit 30 stores processing conditions for the original image set using the keyboard 22 or the mouse 24. The pre-LU line portion 32 original image is converted into a processed image based on the processing conditions, or a look-up table (LUT) for converting mask data, which will be described later, is stored.

The original image storage units 34R, 34G, and 34B are separated by an RGB switching filter 18 and store R, G, and B original images read by the CCD camera 14. The mask storage unit 36 stores a specific area set to perform desired image processing on the original image as mask data. The processed image storage 838R138G, 38B stores a processed image obtained by performing desired image processing on the specific area of the original image.

The image processing device 10 to which the image processing method according to the present embodiment is applied is basically configured as described above.
Next, an image processing method using this image processing device f10 will be explained.

First, the original image reading operation will be explained based on the flowchart shown in FIG.

The original image recorded on the document S is read by the CCD camera 14 with the RGB switching filter 18 set to R (SL, S2). The read original image is sent to A/D converter 1
After being converted into a digital signal by 2, it is stored in the original image storage unit 34R via the bus 40 and displayed on the CRT display 20 of the console 16 (33
．． 34). Next, the operations from 32 to S4 are repeated with the RGB switching filter 18 set to G and B, and the respective original images are stored in the original image storage sections 34G and 34B (S5).

Next, a case in which a specific area is set for the original image will be described based on the flowchart in FIG.

First, as shown in FIG. 4, the original image 44 is displayed on the CRT display 20 (510), and a specific point 46 is specified at the center of the area where desired image processing is to be performed on the original image 44 using the mouse 24. (Sll). Next, the diameter of the circumference 48 centered on the specific point 46 is adjusted using the mouse 24, and a specific area 50 surrounded by the circumference 48 is set (512). In this case, the specific area 50 is the original image 44
It shows an area on which desired image processing is to be performed, and the area can be arbitrarily adjusted using the mouse 24.

Next, mask data corresponding to the specific area 50 is created (313). This mask data is created in order to perform desired image processing only on the specific area 50. For example, the original image 4 corresponding to the specific area 50 is
The position data of No. 4 is set to 1, and the others are set to 0 and stored in the mask storage unit 36. This mask data is displayed as a mask image 52 on the CRT display 20 as shown in FIG. 5 (S14). If the operator desires the mask image 52 shown in FIG. 5 (S15), the operator stores the corresponding mask data as is in the mask memory 936 (S16). Also, if it is not what you want, S
A desired mask image 52 can be obtained by repeatedly performing the processes from IO to S14.

Next, a case in which desired image processing is performed on the original image 44 within the specific area 50 will be described according to the flowchart in FIG.

First, the operator uses the mouse 24 or the keyboard 22.
Processing conditions are set using (S20). in this case,
As shown in FIG. 7, an original image 44 and a specific area 50 are displayed on the CRT display 20, and
A plurality of processing condition setting marks 54 are displayed. Note that this processing condition setting mark 54 is, for example,
It is assumed that the original image 44 within 0 corresponds to processing conditions such as making it "brighter" or "darker" than the displayed image.

Therefore, when the operator selects desired processing conditions using the mouse 24, the CPU 26 in the image processing apparatus 10
is the lookup table corresponding to the processing conditions as LU
Selected from the previous storage section 32, and the original image storage section 34R134G
, 34B are subjected to gradation conversion to the original images 44 of each color and stored as processed images in the processed image storage unit 3.
It is stored in 8R, 38G, and 38B (321).

Next, the CPU 26 executes the processing image storage sections 38R and 38G.
, 38B 322), and the processed images and the mask image 52 stored in the mask storage unit 36.
The common part 55 with is extracted as shown in FIG.
S23).

Note that this common portion 55 can be obtained by calculating the logical product of the processed image and mask data.

Subsequently, the CPU 26 stores the mask data in the pre-LU storage section 32.
An inverted mask image is created by inverting using a lookup table (see FIG. 9) stored in the image, and a common portion 57 between this inverted mask image and the processed image is extracted as shown in FIG. (324).

Finally, the common part 55 obtained in S23 (see Figure 8)
and the common portion 57 obtained in step 324 (see FIG. 10) are synthesized (S25). Note that this synthesis involves each common part 55
．． It can be executed by 57 logical sums. Therefore, by performing this processing for each color of RGB (326) and further compositing, as shown in FIG. A composite image 58 can be obtained. This composite image 5
8 is displayed on the CRT display 20 (S27).

Note that if the desired composite image 58 is not obtained, the desired composite image 58 can be obtained by repeating the processes from 820 to S27 again (32g).

[Effects of the Invention] As described above, according to the image processing method according to the present invention, the following effects can be obtained.

That is, by specifying a specific point on the original image on the CRT and setting a specific area based on the specific point,
A desired image processing range can be easily set. Therefore, it is possible to quickly shift from the image processing range setting work to the image processing work, which is particularly convenient when adjusting an image by setting various image processing conditions, for example.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the configuration of an image processing apparatus to which an embodiment of the image processing method according to the present invention is applied. FIG. 2 is a flowchart of an original image reading process in the image processing method according to the present invention. 3 is a flowchart of mask image creation in the image processing method according to the present invention, FIG. 4 is an explanatory diagram of the display when setting a specific area in the image processing method according to the present invention, and FIG. 5 is a flowchart for creating a mask image in the image processing method according to the present invention. FIG. 6 is a flowchart of image processing in the image processing method according to the present invention; FIG. 7 is an illustration of a display when setting processing conditions in the image processing method according to the present invention. FIG. 8 and FIG. 10 are explanatory diagrams when creating a common part in the image processing method according to the present invention, and FIG. 9 is an explanatory diagram when creating an inverted mask image in the image processing method according to the present invention. Explanatory diagram of look-up table FIG. 11 is an explanatory diagram of display of a composite image in the image processing method according to the present invention. 10... Image processing device 14... CCD camera 6... Console 0... CRT display 2... Keyboard 24... Mouse 6...
CPU 28... ROM0... Processing condition storage section 32... LU front storage section 4R, 34G, 3
4B... Original image storage unit 6... Mask storage unit 8R138G, 38B... Processed image storage unit 2... Printer 44... Original image 6... Specific point
50...Specific area 2...Mask image 4...Processing condition setting mark

Claims (1)

[Claims] (1) In an image processing method for performing desired image processing on a specific area of an original image, the original image is displayed on a CRT, and a specific area determined by a specific point and a parameter is simultaneously displayed in an overlapping manner,
Next, after setting a desired specific area on a CRT by changing the specific point and parameters, the image processing method is characterized in that desired image processing is performed on the specific area.