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[Savannah-users] Help with PNG++ (max size images)

From: wim peters
Subject: [Savannah-users] Help with PNG++ (max size images)
Date: Tue, 23 Feb 2016 12:54:17 +0100

Hello Savannah

I'm working with you C++ solution to libpng (PNGPP) and it works great.

I only have one problem...
I'm working on an image processing project which has to load big images
(like 799x2429 pixels).

When I read the pixel values of a small image, it works just fine. But when
I read a big image, the values are all wrong. So I was wondering if there
is a maximum size for the image? Or did I oversee something in your code?

This is all I have now (just to get used to your code and to see how to
compare and read all the values)

        png::image< png::rgba_pixel > img, img2;[1]);[2]);
        for(unsigned int y = 0; y < img.get_height(); y++)
            for(unsigned int x = 0; x < img.get_width(); x++)
                /*if(img[x][y].red == 0)
                    cout << "x:" <<  x << "y:" << y << endl;*/
        cout << "pix[0][2429] " << (int)img[14][14].red << endl;
        cout << "pix2[0][2429] " << (int)img2[14][14].red << endl;

so its nothing big of a code.

Please help me?

Greetings Wim Peters

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