TW503377B - Image processing method and system with multiple modes - Google Patents

Abstract

The present invention is an image processing method and system with multiple modes, which comprises the information capturing and storing of line-art, gray scale, and color images; capture the preliminary color image by the image capturing device; dividing the preliminary color image into the line-art image region, gray-scale image region, color image region; capture the advanced line-art image, advanced gray scale, and advanced color images from the image-capturing device; users can select the line-art image region, gray-scale image region, color image region from the pre-existing images displayed by the image display device to obtain the advanced line-art image, advanced gray scale, and advanced color images; store the image information with multiple modes to a multi-mode image file by an image storing device.

Description

503377 V. Description of the invention (1) ^ [Application range of the invention] The present invention relates to a multi-mode image processing method and system, which can be applied to image processing including black and white, grayscale, and color images. [Background of the Invention] A general electronic picture file is mainly composed of pixels. An image file is displayed in a grid-like arrangement with thousands or even millions of pixels. The computer uses a combination of one or more bits of data to record the brightness and color of each pixel. The larger the number of bits of image data, the larger the amount of data it stores, and the more memory it takes. According to the image storage method, it can be divided into three types: black and white (1 i n e a r t) image, gray level (g r a y 1 e v e 1) _ image and color (color) image. Each pixel of a black and white image uses only one bit to record, and the black point and white point are used to record changes in the image. It is generally used for the interpretation of optical handwriting recognition (OCR). A halftone image (ha 1 ft ο ne) is a black and white image that produces the illusion of a grayscale image. Darker areas are represented by more black dots, and brighter areas are represented by fewer black dots. . Therefore, it can create a sense of layering into an image. Most of the pictures seen in newspapers belong to this type of halftone and image. Each pixel of a grayscale image is represented by more bits. For example: 4 bits are needed to represent the gray level of 16 levels. Furthermore, 8 _ bits can represent up to 2 5 6 The gray level of the order makes the hierarchical expression of black and white photos more three-dimensional and real. Color images contain more complex data than black and white or grayscale images. To obtain color images, digital cameras and scanners use color separation processing, such as:

Page 4 503377 V. Description of the invention (2)-RGB three colors (Red, Green, and Blue) analyze the received image light. Through this mode, all colors in the image can be restored with different intensities using the three primary colors of red, green and blue. With different selection modes, the limit on color recording can reach 24, 30, or 36-bit RGB pixels. However, in practice, a single object often contains more than one image quality, for example: a newspaper contains a black and white image of text, a grayscale image of an advertisement, and a color image of an image; part of the photo of the ID card is a color image. Some belong to black-and-white or gray-scale images; in the management of business cards, it is often necessary to process the color image of the photo portion plus the black-and-white image of the text portion and the gray-scale image of the φ trademark portion at the same time. There are several previous processing methods. The first method is to process them as color images. The advantage is that the image information is rich and not distorted. The disadvantages are the large amount of memory required and the long processing time. The second method is to process it as a black and white or grayscale image. The advantage is that the required amount of memory is small and the processing time is short. The disadvantage is that the image information is too small and it is easy to be distorted. 1 [Summary of the Invention] v In view of this, the present invention proposes a multi-mode image processing method and system for capturing, editing, and storing image information in multiple modes including black and white, gray scale, and color. φ The present invention captures a preliminary color image with an image capture device; separates the preliminary color image into a black and white image area, a grayscale image area, and a color image area with an image analysis device; the advanced black and white image is captured by the image capture device, Advanced grayscale image, advanced color image; users can also input equipment

Page 5 503377 V. Description of the invention (3) Set the existing image displayed by the image display device to select the black and white image area, grayscale image area and color image area to obtain advanced black and white image, advanced grayscale image, advanced color Image: Use the image storage device to store multi-mode image information into a multi-mode image file. The multi-mode image acquisition and storage method provided by the present invention includes the steps of initially acquiring images, analyzing image information, advanced acquiring images, and storing image information. The multi-mode image editing and storage method provided by the present invention includes the steps of capturing existing images, displaying preliminary images, editing image information, and storing image information. The multi-mode image editing and storage system provided by the present invention includes: an image display device, an input device, and an image storage device. The purpose of the present invention is to capture, edit, and store image information in multiple modes including black and white, grayscale, and color. The detailed content and technology of the present invention are described below in conjunction with the drawings: [Detailed description of the invention] Please refer to "Fig. 1" for a flowchart of a multi-mode image capture and storage method. The present invention is a multi-mode image capture and storage method. The multi-mode capture and storage of image information of a target object in multiple modes including black and white, gray scale, and color includes the following steps: preliminary capture of image 100, analysis of image Information 2 0 0, advanced capture image 3 0 0, stored image information 4 0 0. The initial capture of the image 100 is based on the capture of the target by the image capture device. 503377 V. Description of the invention (4)-a step color image. The preliminary capture image 100 captures the preliminary color image at a low resolution between 60 dpi and 300 dpi. The analysis of the image information 200 is to divide the preliminary color image into a black and white image area, a grayscale image area, and a color image area by an image analysis device. The image extraction device 3 0 0 is based on the image extraction device according to the black and white image of the white image area, the advanced gray image, and the advanced color image ... Do not capture the advanced 3 0 0 separately to be between 3 0 0 t image between dp i and 2 400 dpi. Advanced capture image Black and white image, the advanced gray-scale image, the advanced two = cataclysm capture the advanced storage image information 4 0 0 is stored as a strong image. Image, advanced grayscale image, advanced color image. , = Sub-to a multi-mode image Please refer to "Figure 2" to analyze the flow chart of image resources-η 丰. The first embodiment of the Bayesian step is to analyze the image information in step 200—the real A image 2 1 0 and the selected area 2 2 0. Examples include: display preliminary display preliminary image 210 is to display ^ image. 1. Set the initial color image. The range of the selected area 2 2 0 is the black and white image area selected by the user display device and the gray scale rain-in device from the image display area. ~ Image area, color image area 凊 麦 照 「第 3 图」 A flow chart for analyzing image data. The second embodiment of the step Λ analyzes the image information. The first example of step 200 includes: distinguishing color 503377 5. Description of the invention (5) Coordinates 2 3 0, cut image square 2 4 0, calculation distribution The ratio is 2 50, and the classification image is 2 6 0. Differentiating color coordinates 2 3 0 distinguishes a color coordinate into black and white space, gray scale space and color space. Cutting image squares 2 0 0 Cuts the preliminary color image horizontally and vertically. The image is cut into multiple image squares. Calculating the distribution ratio 2 50 calculates the distribution ratio of the pixels contained in each image block in black and white space, gray scale space, and color space one by one. Classification of image blocks 260 is based on the distribution ratio of pixels contained in each image block in black and white space, gray level space, and color space. Each image block is classified into black and white image area, gray level image area, and color image area. Please refer to "Figure 4" for the flowchart of distinguishing color coordinates. Differentiating the color coordinates 2 3 0 includes: converting each point of the color coordinate to the CIE Lab coordinate (L, a, b) 231; dividing each point of the color coordinate where a2 + b2 is greater than or equal to a color threshold into a color space 2 3 2; divide the points of the color coordinates where a2 + b2 is less than the chroma threshold and L is between the white threshold and the black threshold into grayscale space 2 3 3; and The points of the color coordinates are divided into black and white space 2 3 4. Please refer to "Figure 5" for the flowchart of storing image information. Step 4 0 of storing image information includes: recording area information 4 1 0, recording image information 4 0. Recording area information 4 1 0 Records the coordinates of the black and white image area, grayscale image area, and color image area. Record image information 4 2 0 Record advanced black and white image, advanced gray level image 503377 5. Description of the invention (6) Image, advanced color image. Please refer to "Figure 6" for the flowchart of multi-mode image editing and storage method. The invention is a multi-mode image editing and storage method. At least one existing image file is read for editing and stored in a multi-mode including black and white, gray scale, and color. The method includes the following steps: capturing an existing image 600, displaying a preliminary Image 7 0 0, edit image information 8 0 0, save image information 9 0 0. Capturing an existing image 600 refers to reading at least one existing image from an image storage device. Display preliminary image 7 0 0 Existing image is displayed on the image display device. 0 Edit image information 8 0 0 The user uses the input device to select an existing image displayed by the image display device to select a black and white image area, a grayscale image area, and a color image area to obtain an advanced black and white image, an advanced grayscale image, and an advanced Color image. Store image information 9 0 0 Use the image storage device to save advanced black and white images, advanced grayscale images, and advanced color images to a multi-mode image file. Please refer to "Figure 7" for the flowchart of storing image information. Step 9 0 of storing image information includes: recording area information 9 1 0, recording image information 9 2 0. _ Recording area information 9 1 0 Records the coordinates of the black and white image area, grayscale image area, and color image area. Recording image information 9 2 0 Records advanced black and white images, advanced grayscale images, and advanced color images.

Page 9 503377 V. Description of the invention (7) ‘Please refer to“ Figure 8 ”, a block diagram of a multi-mode image capture and storage system. The invention is a multi-mode image capture and storage system, which captures and stores image information of a target object in a multi-mode including black and white, gray scale, and color, including: image capture device 5 1 0, image analysis device 5 2 0. Image storage device 530. The image capturing device 510 is used to capture a preliminary color image of the target object, and according to the black and white image area, grayscale image area, and color image area, the target object respectively captures an advanced black and white image, an advanced grayscale image, Advanced color image. The image capture device 5 1 0 captures this preliminary color image at _ low resolution between 60dpi and 3 0 0 dpi, and captures high resolution between 3 0 0 dpi and 2 4 0 0 dpi Take advanced black and white images, advanced grayscale images, advanced color images. . The image analysis device 5 2 0 is connected to the image acquisition device 5 1 0 to distinguish the preliminary color image into a black and white image area, a grayscale image area, and a color image area. The first embodiment of the image analysis device 520 includes: an image display device and an input device. The image display device is used to display the preliminary color image. The input device is used to provide the user with a black and white image area, a grayscale image area, and a color image area selected by the image display device. The second embodiment of the image analysis device 520 includes: a color coordinate lookup table, a cutting image unit, a calculation unit, and a classification unit. The color coordinate lookup table series takes all the possibilities of a color coordinate, and

Page 10 503377 丄 V. Description of the invention (8) * 'The color coordinates are divided into black and white space, gray scale space and color space, which can be obtained by the following steps: 1. Convert the points of the color coordinates to CIEL ab coordinates (L, a , B). 2. Divide the points of the color coordinates where a2 + b2 is greater than or equal to the color threshold into the color space. 3. Divide the points of the color coordinates where a2 + b2 is less than the chroma threshold and L is between the white threshold and the black threshold as a grayscale space. 4. Divide the points of the color coordinates outside the color space and grayscale space into black and white space. The cutting image unit is used to cut the preliminary color image into a plurality of image φ squares. The calculation unit is used to calculate the distribution ratio of pixels contained in each image block in black and white space, gray scale space, and color space one by one according to the color coordinate lookup table. The classification unit is connected to the calculation unit, and classifies each image to the image block into a black-and-white image area, a gray-scale image area, and a color image area according to the distribution ratio of pixels contained in each image block in black and white space, gray space, and color space. The image storage device 5 3 0 is connected to the image capture device 5 1 0, and is used to store the advanced black and white image, the advanced gray level image, and the advanced color image into a multi-mode image file. The multi-mode image file records the coordinates of the black and white image area, the grayscale image area, and the color image area, as well as the advanced black and white image, advanced grayscale image, and advanced color image.

Page 11 503377 V. Description of the invention (9) Please refer to "Figure 9", a block diagram of the multi-mode image editing and storage system. The invention is a multi-mode image editing and storage system. It reads at least one existing image file for editing and stores it in multiple modes including black and white, gray scale, and color, including: image display device 5 60, input device 5 7 0 、 Image storage device 5 3 0. The image display device 560 is used to display an existing image. The input device 5 7 0 provides users with an existing image displayed by the image display device 5 60 to select a black and white image area, a grayscale image area, and a color image area to obtain an advanced black and white image, an advanced grayscale image, and an advanced color. image. << The image storage device 530 is used to read the existing image and save the advanced black and white image, advanced grayscale image, and advanced color image to a multi-mode image file. The multi-mode image file records the coordinates of the black and white image area, grayscale image area, and color image area, as well as the advanced black and white image, advanced grayscale image, and advanced color image. [Effects of the Invention] The present invention is a multi-mode image processing method and system for capturing, editing, and storing image φ information in a multi-mode including black and white, gray scale, and color. Because the present invention captures and stores black and white images, grayscale images, and color images in multiple modes, unnecessary image information can be reduced, and the required memory capacity can be moderated without compression, and the image processing speed can be increased.

Page 12 503377 V. Description of the Invention (ίο) Because the image information is stored in a single multi-mode image file, some information can be avoided. Although the present invention is disclosed in the foregoing preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application.

Page 13 503377 Simple description of the drawings [Simplified illustration of the drawings] Figure 1 is a flowchart of the method of image capture and storage in multiple modes. FIG. 2 is a flowchart of the first embodiment of the step of analyzing image information. FIG. 3 is a flowchart of a second embodiment of the step of analyzing image information. Fig. 4 is a flowchart for distinguishing color coordinates. Figure 5 is a flowchart of storing image information. FIG. 6 is a flowchart of a multi-mode image editing and storage method. Figure 7 is a flowchart of storing image information. Figure 8 is a block diagram of a multi-mode image capture and storage system. Figure 9 is a block diagram of a multi-mode image editing and storage system. [Symbol description] 100 Initially capture image 2 0 0 Analyze image information 210 Display preliminary image 22 0 Select area 2 3 0 Differentiate color coordinates 231 Convert coordinates 232 Divide color space 2 3 3 Divide gray space 2 34 Divide black and white Space 24 0 Cut image block 2 5 0 Calculate distribution ratio 2 6 0 Classify image block 3 0 0 Advanced capture image

Page 14 503377 Simple illustration of the diagram 40 0 Stored image information 410 Recorded area information 4 2 0 Recorded image education 510 Image capture device 5 2 0 Image analysis device 5 3 0 Image storage device 5 6 0 Image display device 5 7 0 Input device 6 0 0 Capture existing image 7 0 0 Display preliminary image 80 0 Edit image information 9 0 0 Store image information 910 Record area tribute 92 0 Record image information

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Claims (1)

503377 s, patent application scope 1, a multi-mode image processing method, which captures and stores the image information of a target object in multiple modes including black and white, gray scale, and color, including the following steps: Initially capture an image: use an image The capturing device captures a preliminary color image of the target object; analyzes the image information ... The preliminary color image is divided into a black and white image area, a grayscale image area, and a color image area by an image analysis device; advanced capture Image acquisition: The image capture device acquires an advanced black and white image, an advanced gray level image, and an advanced color image according to the black and white image area, the gray scale image area, and the color image area respectively for the target object. ; And storing image information: using an image storage device to store the advanced black-and-white image, the advanced gray-scale image, and the advanced color image into a multi-mode image file. 2. According to the multi-mode image processing method described in item 1 of the scope of the patent application, the preliminary image capture step is to capture the preliminary color image at a low resolution between 60 dpi and 300 dpi. 3. The multi-mode image processing method described in item 1 of the scope of the patent application. The step of analyzing image tributes includes: displaying a preliminary image: displaying the preliminary color image with an image display device; selecting a range of areas: the user using a The input device selects the black and white image area, the grayscale image area, and the color image by the image display device. Page 16 503377 6. Scope of patent application Color image area. 4. The multi-mode image processing method described in item 1 of the scope of the patent application 5 The step of analyzing image leanness includes: • distinguishing color coordinates: distinguishing a color coordinate into a black and white space, a grayscale space, and a color space; Cut image block: cut the preliminary color image horizontally and vertically into a plurality of image blocks; calculate the distribution ratio: calculate the distribution ratio of pixels contained in each image block in the black and white space, the grayscale space, and the color space one by one. ; And classify image blocks: classify each image block into the black and white image area, the grayscale image area, and the color image according to the distribution ratio of pixels contained in each image block in the β black and white space, the grayscale space, and the color space. region. 5. According to the multi-mode image processing method described in item 4 of the scope of the patent application, the step of distinguishing the color coordinates includes: Converting the points of the color coordinates to the CIE Lab coordinates (L, a, b); * a2 + Each point of the color coordinate where b2 is greater than or equal to a color threshold is divided into the color space; φ divides the color where a2 + b2 is less than the chroma threshold and L is between a white threshold and a black threshold Points of the coordinates are divided into the gray scale space; and the color space and the color coordinates outside the gray scale space are Page 17 503377 6. Scope of patent application Each point is divided into this black and white space. 6. According to the multi-mode image processing method described in item 1 of the scope of patent application, the advanced image capture step is to capture the image at a high resolution between 300 dpi and 240 dpi. Black and white image, the advanced grayscale image, and the advanced color image. 7. The multi-mode image processing method described in item 1 of the scope of patent application, the step of storing image information includes: recording area information: recording coordinates of the black and white image area, the grayscale image area, and the color image area; and Record image information: record the advanced black and white image, the advanced grayscale image, and the advanced color image. 8. A multi-mode image processing method, capturing at least one existing image file for editing and storing in multiple modes including black and white, gray scale, and color, including the following steps: Retrieving an existing image: reading at least one image storage device An existing image;: display a preliminary image: display the aforementioned existing image with an image display device; ^ edit image information: the user selects a black-and-white image area with an input device from the aforementioned existing image displayed by the image display device, a A grayscale image area and a color image area to obtain an advanced black-and-white image, an advanced gray-scale image, and an advanced color image; and storing image information: using an image storage device, the advanced black-and-white image, the advanced Grayscale image, the advanced color image is saved to more than one Page 18 503377 6. Scope of patent application Mode image file. 9. The multi-mode image processing method as described in item 8 of the scope of patent application, the step of storing image information includes: recording area information: recording coordinates of the black and white image area, the grayscale image area, and the color image area; and Record image information: record the advanced black and white image, the advanced grayscale image, and the advanced color image. 10. A multi-mode image processing system that captures and stores image information of a target in multiple modes including black and white, gray scale, and color, including: an image capture device for capturing a target Preliminary color image, and according to a black and white image area, a grayscale image area, and a color image area, respectively, an advanced black and white image, an advanced grayscale image, and an advanced color image are acquired for the target object; an image analysis A device connected to the image capture device to distinguish the preliminary color image into the black and white image area, the grayscale image area, and the color image area; and an image storage device connected to the image capture device for The advanced black-and-white image, the advanced gray-level image, and the advanced color image are stored in a multi-mode image file. 11. The multi-mode image processing system described in item 10 of the scope of patent application, the image capture device captures the preliminary color image at a low resolution between 60 dpi and 300 dpi . 1 2. The multi-mode image processing system described in item 10 of the scope of patent application Page 19, 503377 6. The scope of the patent application. The image capture device captures the advanced black-and-white image, the advanced gray-scale image, and the high-resolution image at a high resolution between 300 dpi and 240 0 dpi. Color image. 1 3. The multi-mode image processing system described in item 10 of the scope of patent application, the image analysis device includes: an image display device for displaying the preliminary color image; and an input device for providing a user The image display device selects the black and white image area, the grayscale image area, and the color image area. 14. The multi-mode image processing system as described in item 10 of the scope of patent application, the image analysis device includes: a color coordinate look-up table for enumerating all possibilities of a color coordinate, and distinguishing the color coordinate into A black and white space, a gray scale space, a color space; a cutting image unit for cutting the preliminary color image into a plurality of image blocks; a calculation unit for calculating each image block one by one according to the color coordinate lookup table Including the distribution ratio of pixels in the black and white space, the gray scale space, and the color space; and a classification unit connected to the calculation unit, and according to the pixels included in each image block in the black and white space, the gray scale space, and the color space The distribution ratio classifies each image square into the black and white image area, the grayscale image area, and the color image area. 503377 6. Scope of patent application 1 5. Multi-mode image processing system as described in item 14 of patent application scope 5 The color coordinate lookup table is obtained by the following steps: Convert each point of the color coordinate to CIE Lab coordinate (L, a, b); divide each point of the color coordinate where a2 + b2 is greater than or equal to a color threshold into the color space; a2 + b2 is smaller than the chroma threshold and L is between a white threshold Points of the color coordinate between a black threshold and a black threshold are divided into the grayscale space; and points of g of the color coordinate outside the grayscale space and the color coordinate are divided into the black and white space. 16. The multi-mode image processing system as described in Item 10 of the scope of patent application, the multi-mode image file records the black and white image area, the gray scale image area, the coordinates of the color image area, and the advanced black and white image , The advanced grayscale image, the advanced color image. 17. A multi-mode image processing system that reads at least one existing image · file for editing and storage in multiple modes including black and white, grayscale, and color-storage, including: an image display device for displaying at least one existing image ; An input device that provides a user to select a black-and-white image area, a gray-scale image area, and a color image area to obtain an advanced black-and-white image and an advanced gray-scale from the aforementioned existing image displayed by the image display device; Image, an advanced color image; and an image storage device for reading the existing image, and Page 21 503377 6 18 Patent application scope The advanced black and white image, the advanced grayscale image, and the advanced color image are saved to a multi-mode image file. The multi-mode image processing system described in item 17 of the scope of patent application, the multi-mode image file records the black and white image area, the gray scale image area, the coordinates of the color image area, and the advanced black and white image, the Advanced grayscale image, this advanced color image. Page 22