How to use the Photoshop channel

1. Channel is the place to save information, the channel is in accordance with 8 bits to store information, and PS layer is 24, so that according to the storage format PSD is very much of the hard disk space, and use the channel to save information, that can take up less hard disk space. At the same time, many standard images such as: TIF, TGA, etc. can contain channel information, so much more convenient for different applications to share information.

2. The channel layer is actually the image layer selection region mapping, completely black area indicates that there is no choice, completely white area indicates complete selection, gray area from the depth of gray to determine the degree of selection. The transparent GIF image that is now popular on the web is actually a channel that tells the application (ie browser) that the parts need to be transparent, and those parts don't need to be transparent.

3. Channels can also be used to calculate the image layer synthesis, resulting in many special effects. In addition, the real image processing experts through the channel to accurately adjust the image. channels, whether in R, G, B, or in C, M, Y, K images are shown in black, white, gray three kinds. So you can separate the channel to each image for accurate color adjustment.

Classification:

• PS Getting Started Tutorial