md Originalsmove *.DNG Originalsset OLDDIR=%CD%chdir Originalsrem for %%i in (*.DNG ) do "C:\Program Files\Adobe\Adobe DNG Converter.exe" -dng1.3 -d "%OLDDIR%" "%%i"cd "%OLDDIR%"
I know this is not a CHDK problem, but when running Adobe DNG converter on the command line the images are always reduced to 768 * 1024.
All DNG files (both 1.1 and 1.3) produced by CHDK can be converted by Adobe to new DNG files.
Version 1.3. In Irfanview almost all hot pixels have been corrected.
For DNG 1.3, CHDK simply generates instructions for the DNG processor which say values below a certain value are "bad".
Quote from: philmoz on 15 / October / 2013, 23:59:19In the current code, the manual bad pixel removal only works where the sensor value is 0 when the removal mode is set to 'Average' - this is probably a bug introduced in a previous code cleanup.That means it doesn't work at all. News to me...
In the current code, the manual bad pixel removal only works where the sensor value is 0 when the removal mode is set to 'Average' - this is probably a bug introduced in a previous code cleanup.
Regarding DNG 1.3, someone on the forum created a patch to dcraw to handle DNG 1.3 badpixel opcodes, see http://chdk.setepontos.com/index.php?topic=9443.msg98243#msg98243I'm not sure what the status is, but you might be able to find it or get a copy from them.
DNG 1.3 converters replace pixels below a certain value with pixels derived from surrounding pixels. CHDK specifies that value in the DNG 1.3 file. The results should be just as good or better than 1.1, without requiring "badpixel.bin" generation, or the overhead of interpolating pixels in CHDK when saving raw files. So using 1.3 should solve the current problem being discussed.
Now the problem has become a DNG 1.3 file processing issue, and not a CHDK issue.Maybe it's time to remove the code in CHDK for DNG 1.1?
I would guess this is "preview" sub-ifd and the full resolution image is still in there somewhere. What size are the files?
UFRaw-batch 0.19 will now work to extract raw images of both DNG 1.1 and 1.3, but the quality of images with a large number of hot pixels is still poor, although better than what can be achieved with DCRaw. That is to say, not all hot pixels are removed. Perhaps fiddling with the wavelet-denoise parameter may improve the quality, I'll give it a try..
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