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Image reading from resource file giving warning

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  • mrjjM mrjj

    @Pradeep-Kumar said in Image reading from resource file giving warning:

    iCCP chunk from the PNG image.

    Its part of the format
    http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html#C.iCCP
    Its the color profile area.

    the warning comes from app like photoshop on windows adding a profile that libpng consider not ok.
    So it says to you "your image contains a known bad profile and i am warning you about it"
    Its not a Qt thing but the pnglib that does it.

    Been there for some years now :;)
    Read the links that @Ratzz provides.
    I also looked at in at some point.
    U can rebuild the png plugin and disable warning or use an image program to remove the (known) fault
    profile.
    Or simply ignore it. Colors looked fine for all RGB i tested.
    Also after upgrading to 5.7 i have not seen it since.
    Still use the same version of photoshop so something might have changed.
    (or they fixed photoshop) :)

    Pradeep KumarP Offline
    Pradeep KumarP Offline
    Pradeep Kumar
    wrote on last edited by
    #6

    @mrjj

    Thanks for the answer.

    command :

    magick "<source-path>\sample.png" "<destinatio-path>\sample.png".

    apart from the command is their any other way. to remove the chunks?.

    Thanks,

    mrjjM 1 Reply Last reply
    0
    • Pradeep KumarP Pradeep Kumar

      @mrjj

      Thanks for the answer.

      command :

      magick "<source-path>\sample.png" "<destinatio-path>\sample.png".

      apart from the command is their any other way. to remove the chunks?.

      Thanks,

      mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #7

      @Pradeep-Kumar
      there are tons of info on google
      http://www.imagemagick.org/discourse-server/viewtopic.php?t=22444
      But any method works as long as warning is removed.

      1 Reply Last reply
      1
      • Pradeep KumarP Offline
        Pradeep KumarP Offline
        Pradeep Kumar
        wrote on last edited by
        #8

        yep that command was one of the method where warnings was removed,
        i observed in linux , the app crashed because of warning, will it treat it as error in some paltforms?.

        Thanks,

        mrjjM 1 Reply Last reply
        0
        • Pradeep KumarP Pradeep Kumar

          yep that command was one of the method where warnings was removed,
          i observed in linux , the app crashed because of warning, will it treat it as error in some paltforms?.

          Thanks,

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #9

          @Pradeep-Kumar
          Hi
          no it should always be a warning.
          Should never cause a crash.
          That must be something else.

          1 Reply Last reply
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          • Pradeep KumarP Offline
            Pradeep KumarP Offline
            Pradeep Kumar
            wrote on last edited by
            #10

            so hmmmm k , anyways thanks for the forum , and for the path to get the answers.

            Thanks,

            mrjjM 1 Reply Last reply
            1
            • Pradeep KumarP Pradeep Kumar

              so hmmmm k , anyways thanks for the forum , and for the path to get the answers.

              Thanks,

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #11

              @Pradeep-Kumar
              well thats the whole point of the forum :)
              Good u like it.

              Can you give one of the pngs that give s warning ?
              (postimage.org)

              I want to see if same profile as mine. ( from photoshop)

              1 Reply Last reply
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              • Pradeep KumarP Offline
                Pradeep KumarP Offline
                Pradeep Kumar
                wrote on last edited by
                #12
                This post is deleted!
                1 Reply Last reply
                0
                • Pradeep KumarP Offline
                  Pradeep KumarP Offline
                  Pradeep Kumar
                  wrote on last edited by
                  #13

                  how do you check the profile?.
                  can u explain and teach.

                  Thanks,

                  mrjjM 1 Reply Last reply
                  0
                  • Pradeep KumarP Pradeep Kumar

                    how do you check the profile?.
                    can u explain and teach.

                    Thanks,

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #14

                    @Pradeep-Kumar
                    Hi
                    I use photoshop. It has full color management dialogs.
                    alt text

                    1 Reply Last reply
                    0
                    • Pradeep KumarP Offline
                      Pradeep KumarP Offline
                      Pradeep Kumar
                      wrote on last edited by
                      #15

                      the highlighted data is chuck in sample.png?

                      Thanks,

                      mrjjM 1 Reply Last reply
                      0
                      • Pradeep KumarP Pradeep Kumar

                        the highlighted data is chuck in sample.png?

                        Thanks,

                        mrjjM Offline
                        mrjjM Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on last edited by
                        #16

                        @Pradeep-Kumar

                        well its meta data. not the actual chunk but same information.
                        alt text

                        1 Reply Last reply
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