6-6 Automatic and black-gray-white field – Beginner’s Tutorial

0611 There is an automatic button on the right side of the curve adjustment box. Its function is to expand the color levels in the RGB 3 channels. Full range. If the image is in CMYK mode, expand the CMY channels to the full range. However, if used improperly, it will cause color cast. Let’s take the picture above as an example. Let’s look at the histogram of each channel and find that there is not much difference between RGB and RGB. The peaks and troughs of RGB are all in similar positions. As shown on the left side of the picture below. The effect after using the automatic function is as shown on the right side of the left picture. At the same time, you can also switch to different channels in the curve setting box to see the effect of the automatic function changing the curve. The automatic command has many modes of action. If the result is not consistent with the figure below, click the option button of the curve setting box and select the algorithm as “Enhance the contrast of each channel”. And check “Save as default” below. As shown below on the right. The remaining…