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A590IS porting...

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Offline fe50

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Re: A590IS porting...
« Reply #690 on: 28 / October / 2009, 20:25:10 »
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Quote from: reyalp on 28 / October / 2009, 18:54:02
Irfanview gives them as 1648 x 1236 (exactly half, perhaps this is a product of how irfanview demosaics ?)
Most viewer use this by default for better performance, also Irfanview; the RAW setting with thumbnail/half size/full size view is hidden somewhere in the settings...
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Offline dvip

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Re: A590IS porting...
« Reply #691 on: 28 / October / 2009, 21:03:08 »
@reyalp, 
CHDK-a590-101b-0.9.8.zip looks better.

However, I get:
- a shadow line of 4 pixels @left
- a shadow line of 7 pixels @top

@right and @bottom is perfect.
The black lines are gone.

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Online reyalp

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Re: A590IS porting...
« Reply #692 on: 28 / October / 2009, 21:11:28 »
Quote from: dvip on 28 / October / 2009, 21:03:08
@reyalp, 
CHDK-a590-101b-0.9.8.zip looks better.

However, I get:
- a shadow line of 4 pixels @left
- a shadow line of 7 pixels @top
As I said:
Note that if you wanted to crop the slightly distorted areas around the top and left,
X1 would be 16
Y1 would be 18 or so
The bottom/left seem clean all the way to the edge
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Offline dvip

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Re: A590IS porting...
« Reply #693 on: 28 / October / 2009, 21:15:17 »
@reyalp, 

In IrfanView do you have :
Options-Properties Setting->PlugIns->Load half size image (unchecked?)
That should help load the DNG better.

and yep, X1 = 16, Y1 = 18 will do.


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Offline mngc

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Re: A590IS porting...
« Reply #694 on: 29 / October / 2009, 04:17:14 »
My camera is a590is fw1.0.b. I confused in raw thread. I ready for test, if you want it.

I not expert user, but i can compile the chdk source in linux. I can build with uncomment makefile.inc a590 session with "make firzipsubcomplete". But chdk rawconvert tools not compiled, how i do? Or download link exist to binary? I  think this is very useful for me. This is a linear sensor raw data to linear 16 bit (1-10bit data 11-16bit set to zero) gray image without mosaic? 
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Offline mngc

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Re: A590IS porting...
« Reply #695 on: 29 / October / 2009, 04:22:04 »
@whim

Wow, expert user has same camera. I have long time some problem with chdk. In your camera (a590is fw 1.0.1b) video mode bitrate/quality settings and key working properly? In my camera ewerything is adjustable, but no real changing video size, or focus. Thanks.
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Online reyalp

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Re: A590IS porting...
« Reply #696 on: 29 / October / 2009, 04:27:39 »
Quote from: mngc on 29 / October / 2009, 04:17:14
My camera is a590is fw1.0.b. I confused in raw thread. I ready for test, if you want it.
I think we've figured out the active area, the only question is whether to include the shadowed lines. Those pixels could probably be recovered with modest processing.
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I not expert user, but i can compile the chdk source in linux. I can build with uncomment makefile.inc a590 session with "make firzipsubcomplete". But chdk rawconvert tools not compiled, how i do? Or download link exist to binary? I  think this is very useful for me. This is a linear sensor raw data to linear 16 bit (1-10bit data 11-16bit set to zero) gray image without mosaic?  
go in tools and type make rawconvert

It will convert 10 bit to 16 bit as you describe, if you use -noshift. Otherwise, it will shift the values left by 6 bits (easier to view in some programs)
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Offline whim

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Re: A590IS porting...
« Reply #697 on: 29 / October / 2009, 07:41:34 »
@mngc
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..expert user ..
:lol :lol :lol  level of expertise and post count are not related (at least not in my case, read on ...)

About the video (from include/camera.h, ~line 500)
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//#define CAM_EV_IN_VIDEO             1      // not working on 101b!!!

which sounds like something is broken in the video code (platform/a590/sub/101b/movie_rec.c)
and that's about as far as i get - my ARM assembly can only be qualified as very poor ...
Funny tidbit: in Dutch (my mother's tongue) arm means both 'arm' and 'poor' ... :D

HTH,

wim

edit: i suppose it also doesn't help that i feel that photo camera's are ergonomically totally unsuitable
       for video - i prefer my old & trusty JVC GR-DVP3E for that 
« Last Edit: 29 / October / 2009, 07:49:17 by whim »
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Offline Microfunguy

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Re: A590IS porting...
« Reply #698 on: 29 / October / 2009, 08:27:50 »
Quote from: whim on 29 / October / 2009, 07:41:34
i suppose it also doesn't help that i feel that photo camera's are ergonomically totally unsuitable
       for video

A professional photographer working for the DixonBaxi ad agency said "for a lot of reasons I think the Canon EOS 5D Mark II stills camera is the best video camera available"   !

The used it to make a rebranding commercial for the American Channel 5 network.


David
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Offline dvip

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Re: A590IS porting...
« Reply #699 on: 29 / October / 2009, 09:57:56 »
@reyalp,
Can you compile and post one without the shadowed lines
so we can compare it to the jpgs that the A590IS produces.
I think that most people would crop those shadowed lines
if they have a choice. I wonder if the cam crops this too
before creating the jpg internally.



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