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Pseudocolor processing method of B/W (Black/White) video system

A technology of a camera system and a processing method, which is applied in the field of image processing, can solve the problems of not many mapping colors, technical limitations, etc., and achieves the effects of small size, small data space occupation, and light weight

Inactive Publication Date: 2011-04-06
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the formula is defined by the layered plane with Region-related color, although this layering method is relatively intuitive and simple, but this principle is limited by technical conditions, and there are not many mapped colors

Method used

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  • Pseudocolor processing method of B/W (Black/White) video system
  • Pseudocolor processing method of B/W (Black/White) video system
  • Pseudocolor processing method of B/W (Black/White) video system

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Experimental program
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Embodiment approach 1

[0027] 1. Determine the benchmark: As shown in the schematic diagram of the black and white camera system structure, in the preprocessing, the camera first shoots the 24-color standard board (in the 24-color board, red, green and blue are used as the three primary colors as the benchmark), and the driver is used when shooting. The control device 1 drives the red, green and blue three-color filter 2, every fixed time , one of the red, green and blue three-color filters will get an image through the camera, so that after 3 A set of images is obtained after a period of time, and the environmental coefficient is obtained by applying the formula (4) according to the gray values ​​of the three primary colors in this set of images:

[0028] * = (4)

[0029] 2. Construct function and transformation solution: build a function based on the environmental coefficient we obtained in the previous step , , . Afterwards, we change the standard plate into the sub...

Embodiment approach 2

[0031] 1. Determine the benchmark: as shown in the schematic diagram of the black and white camera system structure, in the preprocessing, the camera first shoots the 24-color standard board (in the 24-color board, red, green and blue are used as the 3 primary colors as the benchmark), and when shooting, use The mechanical device drives the red, green and blue three-color filters, every fixed time , one of the red, green and blue three-color filters will get an image through the camera, so that after 3 A set of images is obtained after a period of time, and the environmental coefficient is obtained by applying formula 4 according to the gray values ​​of the three primary colors in this set of images.

[0032] 2. Construction function and transformation solution: After obtaining the transfer function, we process the camera device, and add a filter composed of three-color filters in front of the camera, so that the scene will be found to be divided in the captured image At ...

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Abstract

The invention relates to a pseudocolor processing method of a B / W video system, which comprises the following steps: inputting the images, which are obtained after being processed by red / green / blue light filters by using a standard colorimetric plate, into a computer, computing environment coefficients, inputting actual images by using the same method, and storing the actual images into the computer to carry out pseudocolor processing. Compared with the traditional B / W video system, the system of the invention enables a common video camera to have the capability of color identification; and compared with the traditional color video system, the system of the invention has the advantages that distortion of color images processed by computer software is small, data occupied space is small, and the overall information data amount of the images is basically identical to that of the images taken by a common B / W video camera. In addition, the invention has the characteristics of small size, light weight and low cost.

Description

technical field [0001] The invention relates to an image processing technology, in particular to a black and white camera system false color processing. Background technique [0002] False color is a different false color processing technology that uses computer image enhancement technology to give the grayscale of the image to improve the visual effect. Each pixel value of a pseudo-color (Pseudo-color) image is actually an index value or code, which is used as the entry address of an item in the color lookup table CLUT (Color Look-Up Table), according to which the address can be found Intensity values ​​including actual R, G, B are output. The color produced by this method of looking up the mapping is called false color. [0003] That is, B(i) = [R(i), B(i), G(i)] (1) [0004] Among them, B(i) represents different gray values, and R, G, and B represent the three primary color component values. Since the human eye can only distinguish more than 20 different levels of gray...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 贾宏志蔡明杰毕波王锋丁浩
Owner UNIV OF SHANGHAI FOR SCI & TECH