[RavSinghChandan]

The predictors take float pages with values in [0, 1], and keep them as the page image. encode_crop passed such a crop to cv2.imencode as is: OpenCV warned Unsupported depth image for selected encoder is fallbacked to CV_8U and wrote values of 0 and 1, so the figures of the embedded and referenced exports were black images.

A float crop is now scaled to uint8 first, so it gives the same image as the uint8 crop

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.76%. Comparing base (50c2ef1) to head (49fad70).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2205      +/-   ##
==========================================
- Coverage   97.77%   97.76%   -0.01%     
==========================================
  Files         170      170              
  Lines       10980    10982       +2     
==========================================
+ Hits        10736    10737       +1     
- Misses        244      245       +1     

Flag	Coverage Δ
unittests	97.76% <100.00%> (-0.01%)	⬇️

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[felixdittrich92]

Thanks 👍