Convert format of image as required; one can designate progressive display and image quality.
Actions mode | Instruction meaning | Parameter format | Parameter description | Result description |
---|---|---|---|---|
Convert image format | Format | fmt/str | Str resultant image format value range[jpg, png, webp, bmp, gif] |
jpg save artwork as jpg format. If the artwork is png, webp, bmp with transparent channel, transparency will be filled with white by default |
Assigned image of jpg format supports progressive display or not | Progressive | p | Optional parameters p relatively support Progressive mode not assign p to relate to non-Progressive mode |
Image of jpg format provide progressive display function making blurry image clear when network is at low speed, which relates to Progressive mode while file size of most scenario will be decreased slightly and image processing time will be increased slightly |
Assign image quality of jpg, webp format | Quality | q/n | N upper limit of resultant image quality value range[0,100] |
Resultant image quality=MIN(original quality, assigned quality) Webp original quality is fixed as 85 |
Forcibly assign image quality of jpg, webp format | Quality force | qf/n | N resultant image quality value range[0,100] |
Resultant image quality is forced to be assigned quality |
Obtain original image | Original | o | Optional parameters o Relatively return to original image |
Ignore other processing parameters |
For example: Convert image format of example.jpg to png format
http://s3.cn-north-1.jdcloud-oss.com/downloads/example.jpg?x-oss-process=img/fmt/png