Bad pixel removal for video? - General Help and Assistance on using CHDK stable releases - CHDK Forum
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Bad pixel removal for video?

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Offline Razor512

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Bad pixel removal for video?
« on: 15 / February / 2011, 23:22:44 »
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I have a canon powershot a560, it works well with stills but with video, there are a few hot pixels that show up red

is there a way to get the dead pixel data to work while recording video?


PS CHDK works great, the raw image support has greatly improved image quality.  http://www.flickr.com/photos/razor512/

I just wish there were more options to improve video quality
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Offline fe50

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Re: Bad pixel removal for video?
« Reply #1 on: 16 / February / 2011, 01:34:15 »
Hello & welcome, Razor512 !

Quote from: Razor512 on 15 / February / 2011, 23:22:44
is there a way to get the dead pixel data to work while recording video?
No; CHDK can remove/unmask bad pixels only on still images, but not on videos...

Quote
I just wish there were more options to improve video quality
Since the A560 uses the "old" MPEG video format, you may get slightly better videos with CHDK's video overrides; for high quality you'll have to use a fast SD card then...
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Offline Razor512

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Re: Bad pixel removal for video?
« Reply #2 on: 16 / February / 2011, 02:00:24 »
I have a 4GB sandisk extreme 30MB/s

I have the video bitrate to 2x

I am also planning on getting another camera having a lot of trouble choosing since I don't want to lose chdk.

My benchmarks are (chdk benchmark tool)

Write (RAW) : 10979 KB/s
Write (Mem) : 9170 KB/s
Write (64k) : 7123 KB/s
Read (64k) : 8071 KB/s
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