Color image color constant method based on retina vision mechanism

Abstract

The invention discloses a color image color constant method based on a retina vision mechanism, which belongs to the technical field of image processing, and relates to a color image constant technology, in particular to a color image color constant method based on a retina vision mechanism. The invention is based on the current latest optic nerve electrophysiology research achievement to simulatethe retina vision mechanism of human eyes and establish an approaching receptive field single antagonist model to realize the constant color of a deviation color image. The color image color constantmethod based on a retina vision mechanism confirms that the proposed arithmetic is more effective than the current color constant arithmetic through the image validation of more than three hundred different scenes and illumination in the international universal color constant test database; besides, the color image color constant method based on a retina vision mechanism not only can realize theconstant color of the deviation colorful image, but also has the function of reinforcing the image color, thus being more suitable for the visual characteristic of the human eye.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to color image color constant technology, in particular to a color image color constant method based on retinal vision mechanism. Background technique [0002] The color of an object collected by a sensor such as a camera is determined by the incident light, the reflective properties of the surface material of the object, and the transmission properties of the sensor itself. For example, when yellow light hits a white wall, what the sensor collects is the yellow light reflected from the wall. The result is different from the human perception that the wall may still be white. This is because the human eye's perception of the color of an object can remain relatively unchanged under a certain range of changes in external light. This psychological tendency that the human eye's perception of the color of the object's surface tends to be stable is called color constancy (Color Cons...

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Problems solved by technology

Another example is that the whiteboard algorithm assumes that the color shift light source can be determined according to the maximum values ​​of the red, green, and blue channels of the color shift image, but when there is specular reflection, the color shift light source estimated by this method is inaccurate.

The other is to process color image features (such as color invariance, etc.) that are not affected by the light source, without estimating the light source of the color cast image

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