CN110060269A - A kind of processing flow management method of file and picture - Google Patents

Abstract

The invention relates to a process management method for document image processing. The document image is stored in a folder corresponding to each file number, and the processing process of the document image sequentially includes thumbnail generation, crop frame adjustment, image cropping, and image addition. Printing, image quality inspection, and processing flow management methods include: embedding file number processing information under the folder where each file number directory is located, and the file number processing information is used to record the processing status of each image in the processing flow. Different machining states of a machining process are marked with different identifiers to feed back the corresponding machining states. From image processing to finished product output, through standardized management, each step of the operation is recorded in the corresponding database, and the production progress and link of each batch and volume of files can be grasped in real time, and the data can also be grasped. Status, sending and receiving time, person in charge of production and other related information, which is convenient for enterprises to calculate and remunerate staff.

Description

A process management method for document image processing

technical field

The invention belongs to the technical field of document management, and in particular relates to a processing flow management method of a document image.

Background technique

Document image processing refers to the use of scanners or digital cameras and other equipment to digitize paper archives to enhance the quality of original archives, while improving the efficiency of archive information utilization and improving the way of using archive information. An important means. Existing digital processing enterprises carry out data collection and data processing independently. In the collection stage, data is stored in the folder corresponding to each file number by scanning or taking pictures. Data processing is processed for folder-level images, which is inconvenient for management. , the processing speed is slow, and the workload of employees cannot be automatically counted. When the problem data needs to be retaken or reprocessed, the data processing pipeline is easily disrupted, and there is a lack of standardized management methods in the entire image processing process.

SUMMARY OF THE INVENTION

Based on the above deficiencies in the prior art, the present invention provides a process management method for document image processing.

In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

A processing flow management method of a document image, the document image is stored in a folder corresponding to each file number, and the processing flow of the document image sequentially includes generating thumbnails, trimming frame adjustment, image cropping, and image overprinting. , image quality inspection, the processing flow management method includes: embedding file number processing information under the folder where each file number directory is located, and the file number processing information is used to record the processing in the processing flow where each image is located. Different processing statuses of each processing flow are marked with different identifiers to feedback the corresponding processing status.

As a preferred solution, the processing flow management method includes the following steps:

(1) Screen the file number list to be processed, and perform the thumbnail generation operation on the original image in the folder directory corresponding to the file number; through the image edge detection technology, the cropping frame and the inclination angle of the image are automatically recognized, and each image is Image generation includes file number processing information including image name, thumbnail resolution, original image resolution, cropping information, and processing status information; update the file number processing information to generate an identifier corresponding to the thumbnail;

(2) Read the file number processing information corresponding to each file number, open the thumbnail corresponding to each file number page by page, and adjust the cropping information on the thumbnail; identifier;

(3) Rotate and correct the original image, and then calculate the scaling ratio of the cropping frame according to the cropping information, thumbnail image, and original image resolution of each image, and apply the cropping frame to the original image for the effective area of the image. Crop extraction; update the identifier corresponding to the image crop in the file number processing information;

(4) adding a modified bottom edge to the cropped image, extracting the document information corresponding to the image and printing it on the modified bottom edge, to obtain an image stamping effect; update the identifier corresponding to the image stamping in the file number processing information;

(5) Check the image generated in step (4) to determine whether the document image is re-captured, re-cropped and whether there is a missed shot; update the identifier corresponding to the image quality inspection in the file number processing information, and add whether to re-capture , whether to re-cut and whether there is an identifier corresponding to missing shots in the file number processing information;

(6) Collect all images under each file number, and judge whether the image processing is completed according to the identifier corresponding to each processing process in the file number processing information; if so, encapsulate it into a target file according to the image naming sequence; The corresponding identifier is returned to the corresponding machining flow process.

As a preferred solution, the cropping information of the step (2) is applied to the images of odd-numbered pages, even-numbered pages or all pages under the file number.

As a preferred solution, the color of the modified bottom edge in the step (4) automatically selects the background color of the document shading.

As a preferred solution, the document information in the step (4) includes the location, file number, file number and page number of the document.

As a preferred solution, the target file in the step (6) is a PDF file or a DJVU file.

Compared with the prior art, the present invention has the following beneficial effects:

The document image processing flow management method of the present invention, from image processing to finished product output, through standardized management, each step of the operation is recorded in the corresponding database, and the production progress and location of each batch and each volume of files are grasped in real time. At the same time, you can also grasp the status of the data, the time of sending and receiving, the person in charge of production and other related information, which is convenient for the enterprise to calculate and remunerate the staff. In the process of data processing, the problem data can be found in time, and the data can be returned to the previous stage of the processing line, which can effectively avoid problems caused by missed scans and rescans.

Description of drawings

FIG. 1 is a flowchart of a processing flow management method of a document image according to an embodiment of the present invention.

Detailed ways

In order to describe the embodiments of the present invention more clearly, the following will describe specific embodiments of the present invention with reference to the accompanying drawings.

After the document image is digitized, the file number is the lowest directory. The number of pictures in each directory is inconsistent, ranging from a few to hundreds of pictures. In the process of digital processing, the data recorded in the database table cannot reach the image level, only the file number level. The invention realizes the image-level processing management in the process of digital processing.

The document image of the present invention is stored in the folder corresponding to each file number, and the entire image processing process includes generating image thumbnails, trimming frame adjustment, image cropping, image overprinting, and image quality inspection. It realizes the production mode of fast processing in the foreground and automatic batch processing in the background, and the production data is recorded in the database in real time. The database records the number of pages of the image under each file number, the number of generated thumbnails, the framed, cropped, printed, quality-checked and other information. The present invention embeds file number processing information under the folder where each file number directory is located, and the file number processing information is used to record the processing state in the processing flow where each image is located, and different processing states of each processing flow adopt different identifiers Symbols are marked to feedback the corresponding processing status. That is, the present invention proposes to use processing status information (represented by pInfo hereinafter) to record the processing status of each image in the processing flow, specifically represented by eight-bit identifiers (0 and 1 numbers), 0 means unprocessed, 1 Indicates that it has been processed. The first five digits from left to right indicate that the image thumbnail has been generated, the cropping frame has been drawn, it has been cropped, it has been printed, and it has been quality checked. The last three digits indicate whether the image needs to be retaken, re-cropped, or re- Add printing to judge the processing stage of the entire file number catalog.

As shown in FIG. 1 , the processing flow management method of a document image according to an embodiment of the present invention specifically includes the following steps:

Step (1): According to the file number information recorded in the data, filter a list of file numbers that need to be processed in batches, and generate low-resolution thumbnails in batches in the background. Automatically calculates the initial crop bounding box and skew angle of the image. Due to the high resolution of the original captured images, the subsequent loading speed is too slow. The purpose of generating thumbnails is for the image loading speed, which is convenient for fast loading in the foreground in the subsequent processing process, and the fast processing of images to achieve "web page level". final use.

Specifically, the background automatically finds the folder directory corresponding to the file number in the list, uses image processing technology to generate a thumbnail image for each file number, and automatically generates a corresponding processing information processing file, which records each file under the file number. Image thumbnail size, crop frame position, image skew angle and processing status information. In the initial state, the pInfo of each image is "10000000". Indicates that the image has completed the "thumbnail generated" process. And set the "thumbnail has been generated" and "process" field values corresponding to the file number in the database.

Among them, when the document is digitized to collect images, a color card negative with a greater degree of color distinction from the paper will be placed as the background, which is convenient for automatic identification of the effective content of the document image. While generating thumbnails, the present invention automatically recognizes the cropping frame and the inclination angle of the image through the image edge detection technology, uses λ=(x, y, w, h, α) to represent the cropping information, and records the cropping frame. position and tilt angle in the image.

In addition to the λ information, each image also includes the image name, thumbnail resolution, original image resolution, pInfo and other information, which are stored in the same location where the images are stored under each file number.

Step (2): Adjustment of the λ value of the cropping information. Due to differences in paper documents, such as when there are few words and many images on the cover or page, the algorithm may calculate errors in the cropping box, and it is necessary to manually fine-tune the λ value on a page-by-page basis. Usually, when collecting documents, the collecting device (camera) device is fixed, so the initially adjusted λ value can be applied to all subsequent pages. If the acquisition device is a V-shaped structure for simultaneous acquisition of two pages, λ can be applied to the images of odd or even pages according to the naming rules of the images.

Specifically, the document number list is filtered out by the value of the document number "Operation" field. Enter the image cropping information box mode under each file number, adjust the value λ, and update pInfo to "11000000". What is loaded in this step is the thumbnail image generated in step (1) for processing. After the image processing under the entire file number is completed, set the field values of "Drawn Frame" and "Process" corresponding to the file number in the database.

Step (3): batch cutting in the background. First, rotate and correct the original image according to the α value, and then calculate the scaling ratio of the crop box according to the λ value of each image, the thumbnail image, and the resolution of the original image, and apply the size of the crop box to the original image for effective image area. cropping extraction.

Specifically, the list of file numbers that has completed the "Drawing Trim Box" process is filtered through the value of the "Process" field of the file number. Using image processing technology, perform batch cutting in the background according to the λ value, update pInfo to "11100000", and set the field values of "cut" and "process" corresponding to the file number in the database.

Step (4): Add the stamp. A modified bottom edge is automatically added on the image level, and the color of the bottom edge automatically takes the background color of the document shading, and the information such as the collection location, file number, file number, page number and other information of the document corresponding to the document is extracted from the database, and printed on the Retouch the bottom edge of the image to get an overprint effect of the original image.

Specifically, filter out the list of file numbers that have completed the "cutting" process through the value of the "process" field of the file number. Using image processing technology, add a stamp to the image, update pInfo to "11110000", and set the field values of "printed" and "process" corresponding to the file number in the database.

Step (5): Image quality inspection. This link mainly checks the generated image, such as whether the document image needs to be re-collected, whether it needs to be re-cropped, whether there is any missed shot, etc.

Specifically, filter out the list of file numbers that have completed the "add printing" process by the value of the "process" field of the file number. Open the thumbnail for quick image quality inspection. If all the images under this file number are OK, update the pInfo to "11111000". If the image needs to be retaken, the pInfo will be "00000100". If the image needs to be re-cut, the pInfo will be "00000100" 10000010". If you need to retouch, pInfo is "11110001". The value of the "process" field corresponding to the file number is set by checking whether the corresponding positions of each image pInfo are all "1".

After each step of operation, count the number of the first 5 digits of "1" in pInfo, corresponding to thumbnail generation, cropping frame, image cropping, image overprinting, and image quality inspection, you can get the current file number in each The production data in the processing stage can realize data statistics and pay per piece.

Step (6): Image encapsulation. Collect all images under the file number, and check whether pInfo is "11111000". If so, package them into PDF or DJVU files according to the image naming order. If not, return to the corresponding processing flow according to the identification information.

The document image processing flow management method of the present invention is from image processing to finished product output. Through the standardized management of the database, each operation is recorded in the database, and the production progress and link of each batch and each volume of files are grasped in real time. , and can also grasp the status of the data, the time of sending and receiving, the person in charge of production and other related information, which is convenient for the enterprise to calculate and remunerate the staff. In the process of data processing, the problem data can be found in time, and the data can be returned to the previous stage of the processing line, which can effectively avoid problems caused by missed scans and rescans.

The above is only a detailed description of the preferred embodiments and principles of the present invention. For those of ordinary skill in the art, according to the ideas provided by the present invention, there will be changes in the specific implementation, and these changes should also be It is regarded as the protection scope of the present invention.

Claims (6)

1. a processing flow management method of a document image, is characterized in that, described document image is stored under the corresponding folder of each file number, and the processing flow of described document image comprises successively generating thumbnail, trimming frame adjustment, image Cutting, image overprinting, and image quality inspection, the processing flow management method includes: embedding file number processing information under the folder where each file number directory is located, and the file number processing information is used to record where each image is located. The processing status in the processing flow, the different processing status of each processing flow is marked with different identifiers to feedback the corresponding processing status. 2. the processing flow management method of a kind of document image according to claim 1, is characterized in that, comprises the following steps: (1) Screen the file number list to be processed, and perform the thumbnail generation operation on the original image in the folder directory corresponding to the file number; through the image edge detection technology, the cropping frame and the inclination angle of the image are automatically recognized, and each image is Image generation includes file number processing information including image name, thumbnail resolution, original image resolution, cropping information, and processing status information; update the file number processing information to generate an identifier corresponding to the thumbnail; (2) Read the file number processing information corresponding to each file number, open the thumbnail corresponding to each file number page by page, and adjust the cropping information on the thumbnail; identifier; (3) Rotate and correct the original image, and then calculate the scaling ratio of the cropping frame according to the cropping information, thumbnail image, and original image resolution of each image, and apply the cropping frame to the original image for the effective area of the image. Crop extraction; update the identifier corresponding to the image crop in the file number processing information; (4) adding a modified bottom edge to the cropped image, extracting the document information corresponding to the image and printing it on the modified bottom edge, to obtain an image stamping effect; update the identifier corresponding to the image stamping in the file number processing information; (5) Check the image generated in step (4) to determine whether the document image is re-captured, re-cropped and whether there is a missed shot; update the identifier corresponding to the image quality inspection in the file number processing information, and add whether to re-capture , whether to re-cut and whether there is an identifier corresponding to missing shots in the file number processing information; (6) Collect all images under each file number, and judge whether the image processing is completed according to the identifier corresponding to each processing process in the file number processing information; if so, encapsulate it into a target file according to the image naming sequence; The corresponding identifier is returned to the corresponding machining flow process. 3. The processing flow management method of a document image according to claim 2, wherein the cropping information of the step (2) is applied to odd-numbered pages, even-numbered pages or all pages under the file number. on the image. 4 . The processing flow management method of a document image according to claim 2 , wherein the color of the modified bottom edge in the step (4) automatically selects the background color of the document shading. 5 . 5 . The method for managing the processing flow of document images according to claim 2 , wherein the document information in the step (4) includes the location, file number, file number and page number of the document. 6 . 6 . The method for managing the processing flow of a document image according to claim 2 , wherein the target file in the step (6) is a PDF file or a DJVU file. 7 .