Hi Christophe,
look at this line:
> --> NSLog ( @"RGB value of pixel %@", aByte); // patch crashes
> here
The "%@" stands for a NSString. You need to put "%c" in there for the type
"Byte".
Christoph Vonrhein
On Nov 5, 2012, at 10:23 AM, Christophe Leske wrote:
> Hi Tom,
>
> thank zou verz much, that was what I am after!
>
> I am trzing to read out the pixel values from a vImage_Buffer, but can't seem
> to find the way to do this:
>
>
>
> NSLog ( @"Scaling ok"); // show me the pixels of the new image!
>
> for(int y=0;y<vDestBuffer.height;y++)
> {
> for(int x=0;x<vDestBuffer.width;x+=4)
> {
> // we jump in 4 bytes, as we have an BRGA8 format
> Byte aByte = &buffer.data;
>
> --> NSLog ( @"RGB value of pixel %@", aByte); // patch crashes
> here
>
> }
> }
>
>
> WHat am I doing wrong? I want to read out the individual bytes from the
> pointer passed. Apart from not increment the pointer, what am I missing here?
> It must be something very obvious?
>
>
> --
> Christophe Leske
> multimedial.de
>
> ----------------------------------------
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