PS Channel mixer for photo with clear dark brown tone

Introduction to Channel Mixer: In the process of using a channel mixer, it is necessary to pay attention to the addition or subtraction of color information from this channel or other channels of the same image location. That is, the image color information of a channel in space can be computed by this channel and other channel color information. Output channel can be a source image of any channel, the source channel is based on the color pattern of the image will be different, color mode is RGB when the source channel for R, G, B, color mode for CMYK, the source channel for C, M, Y, K. The blue channel is the output channel, assuming that the cyan channel is the processing object, that is, the result of the operation in the diagram is only reflected in the blue channel. The calculation in the figure is: the original color information of the cyan channel of all images (the slider is still 100%), minus 32% of the yellow information at the same image position, plus 22% of the magenta channel color information at the same image position, and then increase 16% dot size on this basis. So the output of the image in the cyan dot percentage is: c=c+mx22%-yx32%+16%. For example, an image color for c40%m50%y30%k0%, after the operation of the figure, the output is color c57%m50%y30%k0%. The "constant" in the diagram means that the information in this channel directly increases or decreases the percentage of the maximum color representation, where 10% is actually 10%x100%.

The Channel mixer works only when the image color mode is RGB, CMYK, and cannot be manipulated when the image Color mode is lab or other mode.

Below we will apply the channel mixer to the picture palette

First look at the effect

Original

Detailed tutorials

1, open the original image, add an optional color adjustment layer, adjust-cyan-100, method absolutely

The adjusted effect is as follows