the ixus need green red blue green pattern
Can you upload a sample raw (not dng) file somewhere?
http://chdk.setepontos.com/index.php?topic=5722.msg58839#msg58839See that post. in later posts you find image
http://chdk.setepontos.com/index.php?topic=5722.msg58881#msg58881later i find out it is a
#define cam_CFAPattern 0x01020001 // Green red blue Green
pattern i do testcode that show me number of 1 bayer pattern row and heigt (2*2) on display.I hold kamera on some red or green or blue areas and see which number is the highest.so i see which pixel is sensitiv to the color.
but no other camera seem have this pattern.
the pattern of the IX1000 can reach with known patterns in chdk when, shift 1 pixel.but because every pixel need 12 bit i guess it do not work.
with this 0x01020001 images look correct, only in dark places its more blue than black.In bright places white balance is correct.
but because there is no dng4cr here that support this pixel format, no color matrix can calc and i try some color matrix settings and choose the best.
The Ixus 300 have same sensor, but the settings of Ixus 300 do complete wrong colors with Ixus 1000
