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A590IS porting...

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Offline whim

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Re: A590IS porting...
« Reply #710 on: 30 / October / 2009, 11:09:15 »
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@dvip

Quote
The bad thing is, no more upgrades for me

if you're running / have access to Windows, give CHDK-Shell a try ('Compile your own CHDK', in my sig)
i firmly believe that anyone that can, say, post on this forum should be able to use it.
all you need is ~250 MB of free HD space (it will even run on ancient hardware like a Pentium 1 with Win2000)
just PM me if you have any questions or need assistance  :D

CU,

wim

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Offline reyalp

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Re: A590IS porting...
« Reply #711 on: 30 / October / 2009, 16:11:27 »
Quote from: dvip on 30 / October / 2009, 10:13:43
@whim, yes, I understarstand the point of having the extra pixels. However, the one that reyalp posted works great for me. I was looking for this for a long time, it will be my chdk version for a long time, it cuts time on my workflow.
Surely you can add automated cropping to your workflow ? Exiftool might even let you just twiddle the active area tags ?

Quote from: mngc on 30 / October / 2009, 08:47:28
This program ok for me, with know file structure very useful. I have some astro photography related problem. Now easy find the real pixel values, etc.
That makes sense. I hope to eventually expand it to a larger set of tools for operations that are better done in the pure raw stage.
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Offline dvip

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Re: A590IS porting...
« Reply #712 on: 30 / October / 2009, 19:53:44 »
@whim, thanks for your kindness in offering to help. I
wish I had the time, that's my main problem, time.

@reyalp, I will have to make the time to get to know
Exiftool. So far my tools are dcraw and irfanview (for
cropping, sharpen and color). Like chdk, they do their
job well.
BTW, I just tested a590-101b-0.9.8-825-full.zip  today.
Nothing there for the A590IS, but no problems with it
either, nice.

Yes, whim, I should be doing more C/C++ programming
and less testing and picture taking :)

Talking about C, I see some references to 
cam_BaselineNoise and cam_BaselineSharpness in
trunk/core/dng.c to be used in struct dir_entry IFD0[].
Is it just info to fill the dng's header or is noise/sharpness being adjusted there?
« Last Edit: 30 / October / 2009, 20:02:36 by dvip »
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Offline reyalp

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Re: A590IS porting...
« Reply #713 on: 04 / November / 2009, 01:19:17 »
I've committed this with the values http://chdk.setepontos.com/index.php/topic,2361.msg42441.html#msg42441

This leaves the shadow pixels, which I believe is in accordance with the DNG spec.
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Offline dvip

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Re: A590IS porting...
« Reply #714 on: 04 / November / 2009, 09:25:58 »
Thanks reyalp. Yes, the shadowed lines can provide 
extra pixels for a raw converter's demosaicing
algorithm. I still have the other version without the
shadowed lines in my card and use it when needed.
Perhaps sometime in the future we can have an
option in chdk's menu to select one or the other.

BTW, nice job with the logical events! That has lots of
potential to add cool features. Can any of the events
be used to turn the cam off from a lua/ubasic script
after a number of shots? I can see this being put to
use with a MD script.

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Offline reyalp

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Re: A590IS porting...
« Reply #715 on: 04 / November / 2009, 16:17:45 »
Quote from: dvip on 04 / November / 2009, 09:25:58
Can any of the events  be used to turn the cam off from a lua/ubasic script after a number of shots?
From lua post_levent_to_ui("PressPowerButton")

I should probably change the existing shutdown function to use this, since afaik the existing code doesn't actually shut down nicely on many cameras.

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Offline dvip

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Re: A590IS porting...
« Reply #716 on: 04 / November / 2009, 18:19:06 »
@reyalp, works fine in the A590IS-101b and lua:

--[[
@title take pict and off u go
]]

print("Wait please... ")
sleep(3000)
shoot()
post_levent_to_ui("PressPowerButton")


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Offline fe50

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Re: A590IS porting...
« Reply #717 on: 07 / November / 2009, 21:18:05 »
Attached there's a patch for the A590 LED control...
...based on this post from ewavr, provided & successfully tested by "rudi" in the german forum (forum thread).

...would be nice to have this in the trunk  ;)
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Offline reyalp

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Re: A590IS porting...
« Reply #718 on: 08 / November / 2009, 19:27:18 »
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Offline dvip

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Re: A590IS porting...
« Reply #719 on: 08 / November / 2009, 21:41:10 »
I'm not sure if this is a bug or what... but when I
set the Override ISO value to 65 with value factor of 1,
I always get ISO 100 (even in the exif data) and
the picture looks brighter than one taken at ISO 80
which the lowest for the A590IS-101b at the same
exposure setting.
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