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PHP image processing

Image processing is also one of the things that PHP often encounters in actual work, which is processing pictures.

There are many scenarios for processing pictures:

  1. Generate verification code
  2. Picture scaling
  3. Picture watermark
  4. Secret password card
  5. Histogram

... ...Wait

1. Generate verification code

document/2015-09-15/55f7a19c49bd8

2. Image scaling

QQ截图20161128110153.png

#Note: The avatar in the experiment was originally a large image, but became a small avatar in Weibo.

3. Picture watermark

document/2015-09-15/55f7a169f2a68

4. Histogram

document/2015-09-15/55f7a83067aa4

5. Password card

document/2015-09-15/55f7a89f5353e

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