Hello All,
I am new here so I start with a big thank you to all the CHDK developers and contributors !
You are designing a really useful (master)piece of software and you give to every PowerShot owner many more reasons to love their camera(s).
I have downloaded CHDK build 0.9.9-1118 recently for my S3IS.
I have played with bad pixel removal settings, and I am puzzled by CHDK behavior and reading the online manual does not clarify things to me. Here is what I have tried :
RAW mode is configured as follows :
- Dark frame substraction off
- RAW on
- DNG off
- badpixel.bin NOT created.
At this stage, trying to check DNG mode, pops-up a warning saying that badpixel.bin must be created. So far, so good.
But, with DNG off, setting "bad pixel removal" to anything other than off, does not warn the user badpixel.bin is required. However, the online manual says this file is used to remove dead pixel from RAW and JPEG picture as well...even when DNG is off. Thus why does CHDK pop up a warning requiring badpixel.bin, when not present, only when checking DNG on ?
After creation of badpixel.bin (camera set @ ISO 400), I played with the three "bad pixel removal" settings : off, average, RAWconv. Both in RAW only and DNG mode. So six possibilites. Shooting mode : flash on, White balance = flash, speed = 1/60s. ISO 400
After inspection, all the pictures from the camera (JPG, RAW and DNG) show the same nasty bad pixels, whatever the setting is.
Either I did something wrong, or the feature does not work, at least on the S3IS ?
The online manual says badpixel.bin is a plain text file with x,y coordinates. But, as the .bin extension tells it, it is a binary file, which can be checked with a file editor.
If I missed something, please, tell me.
Thank you.