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QImage to yCrCb image

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  • mrdebugM Offline
    mrdebugM Offline
    mrdebug
    wrote on last edited by
    #1

    I need a way to fill a yCrCb image with a QImage object. How can I do this? How have I to fill the code below?

    /* Y */
    for (int y = 0; y < height; y+= 2) {
        for (int x = 0; x < width; x+= 2) {
            pict->data[0][y * pict->linesize[0] + x] = ???;
        }
    }
    /* Cb and Cr */
    for (int y = 0; y < height / 2; y++) {
        for (int x = 0; x < width / 2; x++) {
            pict->data[1][y * pict->linesize[1] + x] = ???;
            pict->data[2][y * pict->linesize[2] + x] = ???;
        }
    }
    

    Need programmers to hire?
    www.labcsp.com
    www.denisgottardello.it
    GMT+1
    Skype: mrdebug

    1 Reply Last reply
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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      What algorithm are you currently using for the color space conversion ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      0
      • mrdebugM Offline
        mrdebugM Offline
        mrdebug
        wrote on last edited by
        #3

        None.
        I'm stop at

        QImage QITemp= Image.convertToFormat(QImage::Format_RGB888);
        

        An now?

        Need programmers to hire?
        www.labcsp.com
        www.denisgottardello.it
        GMT+1
        Skype: mrdebug

        1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          You have the math here.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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