The eyedropper tool in Photoshop can be used to pick a color from a location in the image, typically to fill a selection with the foreground color, or to draw a color with a drawing tool, such as a brush tool, pencil tool, and so on.
The eyedropper tool absorbs the color of any document in Photoshop, and in addition to the above uses, it is also important to draw colors from different locations, and then look at the values of colors in the info panel and compare them, which may be less useful for beginners.
For example, when using Photoshop to design a Web page, we often grab some good web pages and then take some ready-made colors to use, and the eyedropper tool comes in handy.
As shown in Figure 1, it is a part of the page that is crawled on the Tenkine Software Channel homepage (you can use the Printscreen key on the keyboard or the special capture software to crawl), we want to draw the color from 1 and 22 locations.
Figure 1
Select the Eyedropper tool from the Photoshoop Toolbox and press Shift+alt to click 1, and then in the document window you can see the sampling point shown in Figure 2, with a "1" in the lower-right corner.
Figure 2
At the same time, the "Information" palette is automatically ejected, as shown in Figure 3, the area marked yellow is the color value of the sample point 1, shown in R, G, and B values.
Figure 3