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-sample 1x1 and default quality #427
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It ends up using different quantization tables, due to the fact that the libjpeg API is stateful and the cjpeg tool is a kludge. |
My problem is that I seem to get quality equal to 75 even if I used -quality 80. I don’t know if it matters if -sample 1x1 should come before or after -quality. My own code said quality was 65 rather then the 75 I got from an online tool which makes me wonder if there’s any tool that could return the estimated quality which I can use in my code |
The docs say default quality is 75.
When using stock cjpeg, both these commands result in identical output:
However, with mozjpeg these two commands result in very different output.
What exactly is going on here?
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