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  1. Qt
  2. QTBUG-78542

semi-transparent image convert issue

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P3: Somewhat important
    • Resolution: Unresolved
    • Affects Version/s: 5.12.5
    • Fix Version/s: None
    • Component/s: Quick: Other
    • Labels:
      None
    • Platform/s:
      All

      Description

      Hi guys,

      I meet a problem when converting semi-transparent images. Because I want to reduce the start up time of the application ,I need to convert the png file to ktx file, but before converting, I need to convert the png file with Imagemagic first , here is the command described in document: 

      convert MYORIGIMAGE ( +clone -alpha Extract ) -channel RGB -compose Multiply -composite MYPMIMAGE

      After convert the png file, I find that, the converted image is different with the original one 

      that make the look of the application a little bit strange.  

       

        Attachments

        1. 001.jpg
          124 kB
          York Chen
        2. 002.jpg
          45 kB
          York Chen
        3. 003.jpg
          43 kB
          York Chen
        4. testOverlay.zip
          348 kB
          York Chen
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          Activity

            People

            • Assignee:
              w00t Robin Burchell
              Reporter:
              yorkchenqt1989 York Chen
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              Dates

              • Created:
                Updated:

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