TWI513328B - Method for real-time adjusting of pixel color - Google Patents

Description

Method for instantly adjusting pixel color

The invention relates to a method for instantly adjusting the color of a pixel, in particular to a method for adjusting the color of a pixel in an immediate manner of a display unit, which has a technique of replacing the color of a pixel of interest in an image image, so that the image is displayed in the image. The distribution of the pixel of interest can be clearly expressed, so that the viewer can understand the information such as the color distribution and shape, and solve the problem caused by the color deviation of the image due to environmental factors or the quality of the display unit.

As is well known, the same image (picture or image) has different inconsistencies in the colors presented by different display devices, one of the main reasons being the devices and technologies used by various display or display card manufacturers in the production of devices. And the processing process is different, and the display will have a certain degree of difference when displaying the same picture. The second reason for the color deviation is related to the brightness and brightness of the display. Zhu and Wu are two people (Journal: "On the standardization of VDT's proper and optimal contrast range," Ergonomics, 33(7), 925-932, 1990) indicates the screen luminance and contrast ratio for the visual performance of the viewer ( Visual performance) has significant communication Effect; Furthermore, different ambient lighting color may also cause inconsistent performance, for example, the environment light and yellow light will be white such that on the screen for viewing by the presented colors produce different visual performance.

Due to the above-mentioned shortcomings, current display devices cannot be viewed by the human eye when certain situations requiring accurate image color information are needed; for example, if medical images are used to diagnose a patient's symptoms, if the color is slightly Deviation will seriously affect the results of the doctor's diagnosis; in addition, the photographer wants to know the distribution of the color or the effect of the gradient on the image he is shooting, and it is difficult to judge because of the above-mentioned lack; in view of this, A valid method of adjusting the pixel color in real time must be found so that the color distribution information of the image can be clearly presented to the viewer without being affected by environmental factors or display quality.

Nowadays, the inventor is in view of the fact that the existing display has a certain degree of color deviation problem when displaying the same picture, so it is a tireless spirit, and is supported by its rich professional knowledge and years of practical experience. And improved, and based on this, the present invention was developed.

The main purpose of the present invention is to provide a method for adjusting the pixel color of a display unit in real time. The technique of replacing the pixel color of interest in the image image enables the distribution of the pixel of interest in the image image to be clearly expressed. Viewers understand the color distribution, shape and other information to avoid the color deviation caused by the environmental factors or the quality of the display unit.

In order to achieve the above-mentioned implementation, the inventors have proposed a method for instantly adjusting the color of a pixel, wherein the display unit can be one of a display card or a display circuit built in the display system chip, and the display unit is configured to receive an image sequence, the above The image sequence includes a plurality of image frames, each image frame having a plurality of pixels, and each pixel has a plurality of primary color elements represented by numerical values, wherein the multiple primary color elements are selected from the group consisting of RGB, CMYK, YUV, HSV, LAB, XYZ a group of color spaces such as HSI and YIQ, and the method for adjusting pixel color in real time according to the present invention includes: first, a replacement event of receiving a plurality of primary color elements from a user end, wherein the replacement event includes a pixel point Taking the condition and the substitution condition of the value of the multi-primary color element; then, scanning the image frame to obtain the value of the multi-primary element of each pixel; and then determining whether the value of the multi-primary element of the pixel meets the capture condition; , the pixel will be multi-primary element value Replace the conditional replacement and continue scanning until the end of the entire image frame scan ends, so that the value of the multiple primary color elements of each pixel of the image frame is adjusted to replace the condition; if not, the image is continuously scanned. Get the value of its multiple primary color elements for each pixel until the end of the entire image frame scan.

In this way, the image frame constituting the image sequence is replaced with the color of the contrast color by the method of adjusting the pixel color in real time, so that the distribution of the pixel of interest can be clearly expressed, so that the viewing is made. Knowing the color distribution, shape and other information, avoiding the environmental factors or the quality of the display unit, causing the color deviation of the image image; in its practical application, it can not only enable the physician to diagnose the patient's symptoms through medical imaging information, but also The pixel color of interest is replaced by a color with a large difference in color contrast to clearly understand the color distribution and shape, avoiding the influence of the color of the display unit on the diagnosis result; and the photographer can also use the method of the present invention. It is also possible to understand the distribution of a certain color or the effect of the gradation, so that the color distribution of the image can be clearly expressed without being affected by environmental factors or the quality of the display unit.

In an embodiment of the present invention, the replacement event may be stored in a memory module of the display unit, and the system may process the image frame by using the content in the replacement event; wherein the memory module may be selected from a temporary register, Read memory (ROM), random access memory (RAM) or flash memory (FLASH).

In an embodiment of the invention, the capturing condition may be set to a single value of at least one multi-primary color element or a set thereof, for example, (R, G, B) = (100, 50, 20), or (R) = (100), or (R, G, B) = (100, 50, 20) and (R, G, B) = (50, 30, 10) and (B) = (25), etc.; The condition can be set to a single value of a multi-primary element, such as (R, G, B) = (10, 20, 30).

　　 In an embodiment of the invention, the image sequence has a fixed frame rate corresponding to the image frame, wherein the fixed frame rate can be between 1 and 480 Hz, and the fixed frame rate of the current general computer display is usually 60 Hz.

In addition, as described above, the method for adjusting the pixel color in the present invention can be applied to a hardware or a soft body, a suitable place or a combination thereof, and thus some aspects or portions thereof may be embedded in actual media. A code (ie, a command), such as a floppy disk, a CD player, a hard disk drive, or any other machine readable storage medium, wherein when the code is loaded and executed by a machine (eg, a computer), the machine Turning into a device for performing the present invention, and in the case where the code is executed in a programmable computer, the computer device usually includes a processor and a processor-readable storage medium (including volatile or non-volatile memory) And/or storage element), at least one input device, and at least one output device.

The object of the present invention and its structural and functional advantages will be explained in conjunction with the specific embodiments according to the structure shown in the following drawings, so that the reviewing committee can have a more in-depth and specific understanding of the present invention.

First, please refer to the first figure, which is a schematic diagram of an architectural block diagram for instantly adjusting the pixel color of an image frame according to a preferred embodiment of the present invention. It is noted that the method for instantly adjusting the pixel color is applicable to a display unit (1). The unit (1) may be one of a video card or a display circuit built in the display system chip. The display unit (1) is configured to receive a sequence of images (2), and the image sequence (2) includes plural numbers. An image frame (21), each image frame (21) has a plurality of pixels, and each pixel has a plurality of primary color elements represented by numerical values, wherein the multiple primary color elements may be selected from RGB, CMYK , YUV, HSV, LAB, XYZ, HSI, and YIQ color space group; for convenience of description, in this embodiment, the multi-primary elements are red (Red, R), green (Green, G) And blue (B, B) color elements as an example After reading and understanding the teachings of the present invention, those skilled in the art will know that the multi-primary elements of the present invention may also be one of CMYK, YUV, HSV, LAB, XYZ, HSI, and YIQ, and not It will affect the implementation of the present invention; in succession, the entire screen of the display is composed of pixels of different colors and brightness, and the ratio of the primary color elements of the red, green and blue corresponding to the pixels in the pixel data of the input display is To determine the color and brightness of the pixel display; please refer to the second figure again, which is a flow chart of the method for adjusting the pixel color in real time according to the preferred embodiment of the present invention, the method comprising the following steps:

Step 1 (S1): receiving a replacement event (4) of the value of the multi-primary element from the user end (3), wherein the replacement event (4) includes the extraction condition (41) of the pixel and the replacement of the value of the multi-primary element Condition (42), and the replacement event (4) can be stored in the memory module (11) of the display unit (1), for the system to process the image frame (21) by using the content in the replacement event (4); The memory module (11) may be selected from a temporary memory, a read only memory (ROM), a random access memory (RAM) or a flash memory (FLASH);

Step 2 (S2): scan the image screen (21) to obtain the value of the multi-primary element of each pixel; in general, the allowable range of the value is 0 to 1023, and the corresponding range of the technology has been The knowledge of the prior art is not the focus of the present invention, and thus is not limited thereto, and various other common or innovative numerical ranges can be used to implement the method of adjusting the pixel color in the present invention;

Step 3 (S3): determining whether the value of the multi-primary element of the pixel meets the retrieval condition (41);

Step 4 (S4): If yes, replace the value of the multi-primary element of the pixel with the replacement condition (42), and continue scanning until the entire image frame (21) ends after the scanning is terminated, so that the image frame ( 21) The value of the multi-primary element of each pixel is replaced by the substitution condition (42); if not, the process returns to step 2 (S2).

In summary, the present invention can be implemented on a personal computer when implemented, wherein the display and display card of the current personal computer can support a frame rate between 1 and 480 Hz, wherein the frame rate is per second. The unit of measurement of the number of frames is displayed, which means the update rate of the image frame (21); for example, the screen update frequency of a typical computer monitor is usually set to 60 Hz, that is, the display screen can display 60 image frames per second (21) Data, when the display unit (1) receives an image sequence (2), the image sequence (2) must correspond to 60 image frames (21), but the image screen (21) displayed on the display screen is framed. The rate of 60 Hz is for convenience of description, and is not limited to the example, and may be higher or lower than 60 Hz, which is not limited herein; the instant adjustment pixel color of the present invention is used when the display unit (1) is used. First, the user can input an image on the input interface (for example, keyboard or touch screen). The point selection condition (41), wherein the extraction condition (41) can be set to a single value of at least one multi-primary color element or a set thereof; for example, (R, G, B) = (100, 50, 20) That is, in the video screen (21), the pixel point whose (R, G, B) is (100, 50, 20) is the capture target, or (R) = (100) is shown in the video screen (21). As long as the pixel whose value of the red primary color element (R) is 100 is the target, regardless of the value of (G) or (B), or a combination of two or more, for example, (R, G, B) = (100, 50, 20) and (R, G, B) = (50, 30, 10) and (B) = (25), here the pixel points (R, G, B) = ( The target of 100, 50, 20) is taken as an example; then, the user must input the substitution condition (42) of the pixel, instead of the condition (42) being set to a single value of the multi-primary element, for example, (R, G, B)= (10, 20, 30), so that when the system scans the image (21), each pixel of (R, G, B) = (100, 50, 20) can be replaced with (R, G, B) = (10, 20, 30); thereby, the user can replace all the pixel colors of interest with the color with a larger color difference, for example, in a sky image (21) The color of the pixel of interest can be replaced by black with a large difference in color (meaning (R, G, B) = (0, 0, 0)), so that the distribution of pixels of interest can be more clearly defined. Performance, to understand the color distribution, avoid the environmental factors or the quality of the display unit, resulting in the color deviation of the image (21); in addition, the gradient in some image frames (21) is not distinguishable by the human eye. The method of adjusting the pixel color in time by the present invention can also be used to understand the color distribution and shape of the gradient layer.

It should be noted that, in the foregoing embodiment, the action of adjusting the pixel color on each image frame (21) is not limited, and the image frame to be displayed on the screen screen can be captured every fixed number of sheets. (21), and repeating the above steps 2 (S2) to 4 (S4); further, the pixel color of each image frame (21) in the fixed number of pixels is applied to the pixel result of the pixel color adjustment. To convert; that is, when the first image frame (21) after adjusting the pixel color is obtained, the first fixed image number can be applied to the first image frame (21); therefore, the number of fixed sheets at the back can be omitted. The step of adjusting the pixel color, thereby saving computation time; for example, suppose every 10 sheets, only need to capture the first image frame (21) and perform the above steps of adjusting the pixel color, and the next 9 sheets The image screen (21) is the result of the replacement of the first image frame (21), that is, the pixel color of the next nine image frames (21). The same as the first video frame (21).

In addition, as described above, the method for adjusting the pixel color in the present invention can be applied to a hardware or a soft body, a suitable place or a combination thereof, and thus some aspects or portions thereof may be embedded in actual media. A code (ie, a command), such as a floppy disk, a CD player, a hard disk drive, or any other machine readable storage medium, wherein when the code is loaded and executed by a machine (eg, a computer), the machine Turning into a device for performing the present invention, and in the case where the code is executed in a programmable computer, the computer device usually includes a processor and a processor-readable storage medium (including volatile or non-volatile memory) And/or storage element), at least one input device, and at least one output device.

According to the implementation description of the method for adjusting the pixel color in time, the present invention has the following advantages:

1. The image of the image sequence constituting the image sequence replaces the color of the pixel of interest with the color of the contrast color by the method of adjusting the color of the pixel in time, so that the distribution of the pixel of interest can be clearly presented, so that the viewer can clearly display Understand the color distribution, shape and other information to avoid the environmental factors or the quality of the display unit (including the display card or display), resulting in the color deviation of the image.
2. The method for instantly adjusting the pixel color of the present invention solves the problem that the colors presented by different display devices are inconsistent, so that when the physician diagnoses the symptoms of the patient by medical image information, the color of the pixel of interest can be replaced with the contrast. Colors with large color differences, in order to clearly understand the color distribution and shape, avoid the result of diagnosis due to the deviation of the color of the display unit, and achieve the purpose of remote consultation; similarly, the photographer can also use the method of the present invention. Understand the distribution of a certain color or the effect of the gradient, so that the color distribution of the image can be clearly expressed without being affected by environmental factors or the quality of the display unit.

In summary, the method for adjusting the pixel color in the instant of the present invention can achieve the intended use efficiency by the above disclosed embodiments, and the present invention has not been disclosed before the application, and has completely complied with the patent law. Regulations and requirements.爰Issuing an application for a patent for invention in accordance with the law, and asking for a review, and granting a patent, is truly sensible.

The illustrations and descriptions of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; those skilled in the art, which are characterized by the scope of the present invention, Equivalent variations or modifications are considered to be within the scope of the design of the invention.

(1). . . Display unit

(11). . . Memory module

(2). . . Image sequence

(twenty one). . . Image screen

(3). . . user terminal

(4). . . Replacement event

(41). . . Capture condition

(42). . . Replacement condition

(S1). . . step one

(S2). . . Step two

(S3). . . Step three

(S4). . . Step four

The first figure: an architectural block diagram for adjusting the pixel color of an image frame according to a preferred embodiment of the present invention

Second Figure: Flowchart of the method for adjusting the pixel color in real time according to the preferred embodiment of the present invention

(1). . . Display unit

(11). . . Memory module

(2). . . Image sequence

(twenty one). . . Image screen

(3). . . user terminal

(4). . . Replacement event

(41). . . Capture condition

(42). . . Replacement condition

Claims (10)

A method for instantly adjusting pixel color is applicable to a display unit, and the display unit receives a sequence of images, the image sequence includes a plurality of image frames having a plurality of pixels (pixels), the pixels A point has a multi-primary element represented by a numerical value, and the method of instantly adjusting the pixel color includes the following steps:
Step 1: receiving, from the user end, a replacement event of the multi-primary color element, wherein the replacement event includes a capture condition of the pixel and a replacement condition of the multi-primary element;
Step 2: Scan the image frame to obtain the value of multiple primary color elements of each pixel;
Step 3: determining whether the value of the multi-primary element of the pixel meets the capture condition; and step 4: if the pixel is matched, the value of the multi-primary element of the pixel is replaced by the replacement condition, and the scanning is continued until The image image ends after the scanning is terminated. The value of the multiple primary color elements of each pixel of the image frame is adjusted to replace the condition. If not, return to the second step. The method for instantly adjusting a pixel color according to the first aspect of the patent application, wherein the display unit is one of a display card or a display circuit built in the display system chip. The method for adjusting the pixel color in real time according to the first aspect of the patent application, wherein the replacement event is stored in a memory module of the display unit. The method for instantly adjusting a pixel color according to the third aspect of the patent application, wherein the memory module is a temporary memory, a read only memory (ROM), a random access memory (RAM) or a flash memory ( FLASH) One of them. The method for instantly adjusting a pixel color according to claim 1, wherein the multi-primary element is selected from the group consisting of RGB, CMYK, YUV, HSV, LAB, XYZ, HSI, and YIQ color spaces. The method for instantly adjusting a pixel color according to the first aspect of the patent application, wherein the capturing condition is set to a single value of at least one multi-primary color element or a set thereof. A method for instantly adjusting a pixel color as described in claim 1 of the patent application, wherein the substitution condition is set to a single value of a plurality of primary color elements. The method for instantly adjusting a pixel color according to the first aspect of the patent application, wherein the image sequence has a fixed frame rate corresponding to the image frame. The method for instantly adjusting pixel color according to item 8 of the patent application scope, wherein the fixed frame rate is between 1 and 480 Hz. A computer readable medium comprising at least a computer executable module, the computer executable module having computer executable instructions, when a computer executes the computer executable instructions, executable as claimed in items 1-9 The method of any of the preceding claims.