1. Put the picture whose text needs to be extracted into ps.
2. Then select a color range.
3. Use the eyedropper tool to absorb the color of the picture text.
4. Then switch the pipette to join the sampling, and absorb the text color again to improve the accuracy.
5. Then adjust the color tolerance and slightly adjust the value.
6. Then click OK, so all the words become a constituency.
7, ctrl+j copy, hold down the ctrl key, click on the text layer, bring up the selection, and fill it with black.
8. In this way, the words in the picture will be picked out.