What is the difference between a mask and a channel in PhotoShop?

A mask is just a mask, i.e. a functional component that masks something you don't want. Channels store color information, which is completely different from masks. Specifically, you can search for the color grading tutorial of the urban poor peasants, which has a detailed introduction to the channel.

Blood-spilled red dust is quite right.

In fact, it's pretty much the same, but the main function of the mask is to cut out the picture, which plays a role in protecting the original ** from destruction, and the channel can be cutout, but it contains ** color information, so the main function is used for color mixing.

Personal understanding in layman's terms.

Mask: Just like a piece of paper A is covered with a piece of paper B, we can modify the content displayed on paper A by changing the size of paper B (similar to the eraser tool, but the advantage is: no damage to the original material, because paper A is for change), the use of masks is very common in PS, and its function is also very large, since you are not very clear about its concept, I will not tell you too much detail for the time being.

Channel: Light is made up of seven colors, but when they are fused together, there is no color. The channel is like one of these seven colors, open a ** in PS (RGB mode when it is normally turned on), it will have 4 channels, the first is the light and dark channel (controls light and dark), the second is the red channel (controls red), the second is the green channel (controls green), and the third is the blue channel (controls blue).

It is common knowledge that red, green, and blue are the three primary colors of light, and when they are fused together, they are white. In RGB mode, all the colors of a ** are made up of these three colors.

Maybe you asked, why are the channels all black and white?! You have to understand that the black and white in the channel shows the degree of color shade!! The darker it is, the lighter the color it controls, and the whiter it controls the darker the color.

For example, if you open a red flower, the red channel will be white in a large area, and the green channel and the blue channel will be black. If you open a green leaf, the green channel will be white in large areas, while the red and blue channels will be black.

Channels are a good helper for color selection, local color adjustment, cutout, and local selection! It's a lot of use

The channel is the red, green, and blue source colors that make up the picture, and it is generally used to make some color changes or borrow the black, white and gray inside to generate a selection.

Masks are used on layers and are generally used for masking, which is the difference between showing and not displaying. It's kind of similar to the eraser tool, but it's modified, unlike the eraser that needs to be changed back after erasing......

I hope it helps!

Masks are most commonly used to remove the useless and leave the useful.

The mask is a mask.

A channel is where color information is stored.

The path is a vector illustration.