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#10 Image quality greatly reduces when using OCR

1.0
closed
cb4960
2021-04-04
2021-03-30
Tom Jerrson
No

Example high quality scan file https://mega.nz/file/2l9QgQSa#Ux5HqwLoo441csqWbUx5nf_lvBkWmUoLttxjGec6aHE

When using OCR the image becomes highly pixellated and artifacts appear. This doesn't go away until I close and reopen the app or flip the orientation back and forth to refresh something. The pixellation does not go away by turning the page back.

Discussion

  • cb4960

    cb4960 - 2021-03-30

    I'm not sure what would be causing this issue for you as the page display functionality and the OCR functionality are separate in the code. Do you see this issue for all files? Which non-default settings are you using? Does this issue appear in older versions, such as v6.6

     
  • cb4960

    cb4960 - 2021-03-30
    • labels: --> Cannot Reproduce
    • status: open --> pending
     
  • Tom Jerrson

    Tom Jerrson - 2021-03-30

    i tried with v6.4, v7.0, and v7.4

    all default settings except i make long-press activate OCR

    here is an example of how it normally displays: https://i.imgur.com/RHDjsYN.png

    then after using OCR: https://i.imgur.com/CeE6roy.png

    the device is a Samsung Galaxy Tab A

    btw i'm not sure but i think it may have been working correctly the last few years up until recently? or maybe i just didn't notice or all my scans were low quality anyway

     
  • cb4960

    cb4960 - 2021-03-30
    • status: pending --> accepted
     
  • cb4960

    cb4960 - 2021-03-30

    Thanks, very interesting. I'll be on the lookout for possible causes.

     
  • Tom Jerrson

    Tom Jerrson - 2021-03-30

    thank you! i truly love your tool it is the most valuable thing to my whole journey i'd say.

    btw one thing i noticed in the screenshot is even the corner buttons lose quality, not just the image. It might have something to do with how the dictionary window or text is displayed since it seems to happen at the moment one of those pop up

     
  • Tom Jerrson

    Tom Jerrson - 2021-04-02

    @cb4960 good news! i was finally able to fix this issue by delete all the of data and cache associated with the app.

     
    • cb4960

      cb4960 - 2021-04-04

      Thanks for sharing the solution.

       
  • cb4960

    cb4960 - 2021-04-04
    • status: accepted --> closed
     

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