C:\Users\Rut\Desktop\showbad>showbad raw_file.CRW 30 > badpixel (I used 30 because I thought my camera, a2500 has a10 bit sensor). Then I take the generated badpixel file and put it and the black crw photo inside the CHDK directory (I also tried to put them in the root directory of the SD card without success).Please help me.Thanks for spending your time reading me.
Ok,I 've just tried and lastly I had the file in the attachment
$ chdkptp -i___> dngload CRW_1060.DNGloaded CRW_1060.DNG___> dnghist -bin=5120-511 12338145512-1023 31024-1535 11536-2047 32048-2559 52560-3071 03072-3583 03584-4095 3
___> dnghist -bin=32 -max=5120-31 14438532-63 60780664-95 166367496-127 2718160128-159 3720824160-191 2302111192-223 857943224-255 250329256-287 55785288-319 12795320-351 3233352-383 832384-415 208416-447 43448-479 14480-511 3512-543 0
___> dnglistpixels -min=512 -fmt=chdk -out=badpixel.txt15 matching pixels
Sorry for the many silly questions but..........to make this file working right how should I use it?Should I put it inside the chdk directory?Shoud I rename it?
Will it works for all raw format (CR2, CRW) or only for DNG?
If I choose dng 1.1 the camera will use badpixel.bin instead of the file generated with chdkptp?
Thanks....now is 736 matching pixel....maybe still too much and I don't know why.....I capped the lens and I was in a darkroom to be sure: I'll try other ways to cap the lens.
___> dnghist -bin=2560-255 12338087256-511 42512-767 15768-1023 31024-1279 31280-1535 11536-1791 01792-2047 12048-2303 22304-2559 12560-2815 02816-3071 03072-3327 13328-3583 03584-3839 13840-4095 3
Please could you tell me, just to know, where I can see information about bit sensor of a canon camera (same days ago i wasn't able to find that info for my a2500.....luckly you said me it's a 12 bit camera ).
I know that 710 + pixel of iso 800 are not "lost" (that is why badpixel file stand for) and that are not too much compared with the 16mpix of the camera....but, having the possibility to ask you, I was just wondering if the better choise is to stay with iso 400 badpixel file or use the iso 800 file and make the hotpixel be averadged via software.
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