1 Reply Latest reply on Jun 29, 2012 2:41 PM by nou

    Problem with access images??

    cyndwith

      i have been trying to employ some basic image processing operation using openCL...

       

      i see that image can be stored in uchar4 array....i see that my bmp image is just 24 bit...will it be a problem??

       

      and when i try to generate histgram for each color layer of the image RGB...i get un expected results..

       

      I store the image data in uchar4* imageData, and try to access it through...imageData.x, imageData.y etc....

       

      i observe that when ever there is a change in the value of imageData.z histogram it is reflected in the imageData.y histogram??

      am unable to find the fault...

       

      can anyone help me...thank you in advance!!!

        • Re: Problem with access images??
          nou

          you just pointed out problem. BMP use 24 bit per pixel. so you must reorganize data from 3 bytes/pixel to 4 bytes/pixel. and just warn you uchar3 and other three component vector types have same size as 4 component. so it doesn't help change it to three component vector type.