Method for regulating skin color of digital image
An adjustment method, digital image technology, which is applied in the field of skin color adjustment of the subject, can solve the problems of digital image perception reduction, etc., and achieve the effect of improving the integrity of the skin
Inactive Publication Date: 2010-07-14
ALTEK CORP
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As a result, the perception of digital images is reduced
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[0024] The present invention is applied to electronic devices with image processing, such as personal computers, digital cameras, digital photo frames, etc., but is not limited to the above examples, and will be described here first. Please refer to figure 1 As shown, it is a schematic diagram of the operation flow of the present invention. The present invention comprises the following steps:
[0025] Loading the input image Imoriginal (step S110 ), the input image Imoriginal at least includes a luminance image Y, a blue chromaticity image Cb and a red chromaticity image Cr;
[0026] Execute the skin color detection program on the input image Imoriginal (step S120), and generate a skin color probability map Sp corresponding to the size of the input image Imoriginal;
[0027] Provide a hue and saturation lookup table (step S130);
[0028] Execute the skin color reconstruction program on the input image (step S140), which searches out the chromaticity pixel value of the corre...
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The invention relates to a method for regulating the skin color of a digital image, which regulates the skin color of an input image. The regulating method comprises the following steps: loading the input image; performing a skin color detection program on the input image to generate a skin color probability graph of which the size corresponds to that of the input image; providing a hue and saturation look-up table; performing a skin color reproducing program on the input image, looking up a chroma pixel value of each pixel value of the input image according to the hue and saturation look-up table to generate a first image, regulating each pixel value of the first image by utilizing the skin color probability graph to generate a second image; performing a skin color smoothing processing program on the second image and generating a third image; and carrying out an image mixing program, mixing each pixel value of the input image and the third image in a mixing proportion and generating a target image. In the method, the skin color probability graph is utilized to carry out skin color comparison on the input image and remove the interference except for the skin color so as to improve the skin integrity of a shot person in the digital image.
Description
technical field [0001] The invention relates to an image processing method, in particular to a method for adjusting the skin color of a subject in a digital image. Background technique [0002] With the development of digital cameras, photography is no longer an expensive consumption. Users can freely shoot desired images to record memorable moments or scenes. Especially shooting people is one of the key points of many photographers. However, during the shooting process, the subject may be affected by factors such as spots on the face, dust or fine lines, which affect the reader's perception of the captured digital image. [0003] In order to solve this problem, digital image editing software can be used to edit the digital image in detail. However, not most users are familiar with image editing software, which also raises the entry threshold for users. Another way is to increase the softening of the image, so that although the color of the above-mentioned color blocks c...
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IPC IPC(8): H04N1/387H04N9/64
Inventor 詹振宏周宏隆
Owner ALTEK CORP