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Thread: Batch conversion doesn't work for options like Brightness and Contrast

  1. #1

    Unhappy Batch conversion doesn't work for options like Brightness and Contrast

    Hi,

    I find batch conversions in Irfanview very convienent and I use them a lot.

    Now I am trying to perform batch conversion of page scans, where I want to set Contrast to 127 to remove the background and have clean black-over-white images. Unfortunately, none of the advanced options in the top-right subset of Advanced Options works: Sharpness, Brightness, Contrast, etc. If I set any of them, I still get the original result in the output.

    All other conversions work nicely.

    I'm using version 4.54 64-bit on Windows 10.

    Thanks for looking into this ASAP

  2. #2
    Moderator Enterprise User Bhikkhu Pesala's Avatar
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    Default

    What other conversion options are you using? Output file format, colour-depth, resizing, etc.

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