Sony Ericsson / Sony : Software, Firmware and Drivers : Modded Camera Driver for k800i/k810i
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On 2007-08-30 01:09:16, max_wedge wrote:
I don't get this obsession with sharpness?? I am not finding any problem with sharpness in the K800 driver. It seems well balanced in this regard.
Hold your camera steady, that's the best advice I can give. The sensor is not a lightning fast DSLR CCD jobbie - you have to hold the camera nice and steady, and also wait a second after taking the picture (don't just snap and run).
Improving sharpness won't fix any other deficiencies in fact it will only make them more obvious. Infact the jagged lines are partially caused by sharpening (sharpening introduces aliasing)
I've compared the sharpened images to default, and they look better on the phone LCD, but look pixelated and rough on the PC screen.
100% Agree with you, Sharpening only makes picture jaggies, and now I'm reset back to standard, or if want to add more sharpening 12.5% is maximum, otherwise picture will be jaggies.
About DSLR, it's using CMOS max
but different CMOS sensor compared with camera phone, but there are some (actually very few) DSLR using CCD.
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Posted: 2007-08-30 02:01:27
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On 2007-08-30 02:01:27, juming wrote:
About DSLR, it's using CMOS max
but different CMOS sensor compared with camera phone, but there are some (actually very few) DSLR using CCD.
I was making a joke, and CCD sounded better than CMOS.
Anyway, CCD is still common in DSLR. CMOS will eventually replace CCD, but there are still many ccd based DSLR's on the market.
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Posted: 2007-08-30 03:10:51
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hi guys... so?! where is the final tweak?!
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Posted: 2007-08-30 03:20:18
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On 2007-08-30 03:20:18, rockygali wrote:
hi guys... so?! where is the final tweak?!
Back to stock driver
but with some improvement on compression, and ISO when using Xenon flash. For sharpening, it's better using third party digital lab software on PC, except if SE can apply "unsharp mask" method for sharpening.
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Posted: 2007-08-30 03:50:04
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oh my.. how come?!
i thought they had something goin on with the 2MP tweak..
i mean that alone will suffice my hunger for better driver.
i just do not understand what they meant when tweaking some lines...
not much of a hex type to tell yah frankly...
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Posted: 2007-08-30 03:54:30
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On 2007-08-29 15:14:33, max_wedge wrote:
mongoose, that 2MP mod is quite cool, it gives us the 2MP images (with this mod alone) that we needed massively tweaked drivers to get the same on the K750!
This tends to prove to me the K800 sensor is quite good.
Perhaps the phone is not really powerful enough to run full quality 3MP images (due to phone resources, no fault of the sensor or camera module itself.)
Or, perhaps camdriver just needs to be tweaked forperformance more than SE could be bothered with!
I'm going for that option....
I think you're right that the phone is not powerful enough. I don't think it has the capacity to cope with images much larger than 900kb. It is interesting that you can improve the 2mp images by increasing the MAX size and buffer to 900. But, you can't take the 2mp much above 900kb either without making the camera unstable. So, the phone is probably limited to creating a 3mp image is limited to around 900kb.
I think the jaggies are coming straight from the sensor and that the phone isn't filtering it out enough. And, I actually think the 3mp pictures are too Sharp. Perhaps if we find a way to reduce the sharpness the phone might apply some anti-aliasing.
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Posted: 2007-08-30 03:55:54
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On 2007-08-30 03:55:54, mongoose3800 wrote:
I think the jaggies are coming straight from the sensor and that the phone isn't filtering it out enough. And, I actually think the 3mp pictures are too Sharp. Perhaps if we find a way to reduce the sharpness the phone might apply some anti-aliasing.
Hm.. I think phone actually already implement some \"blur\" for oversharp picture, but this can only happened if we set sharpening value to FF a.k.a reset sharpening level, so phone will judge it will increase or decrease sharpness picture that taken by sensor.
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Posted: 2007-08-30 04:21:35
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What I do now is just set image size bigger (less compression, thanks mongoose), and make sharpening value to 0 a.k.a do nothing for sharpening, so what cam sensor get will untouched (we can retouch later with any digital lab software such photoshop or any other else), and set any images captured with Xenon flash to ISO 320 (originally ISO 400 but it's overbright, and try set to ISO 250 but some cases tend to darker).
Meanwhile I think this most better result I can get on camera phone, not overbright, oversharp or any other, it's more natural, like what I get on normal digital camera
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Posted: 2007-08-30 04:31:03
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nice work. Now I'm off to compile all that in a driver...
2MP changes, plus sharpening 0, 100% compression, flash to 350.
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Posted: 2007-08-30 05:36:08
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On 2007-08-30 05:36:08, max_wedge wrote:
nice work. Now I'm off to compile all that in a driver...
2MP changes, plus sharpening 0, 100% compression, flash to 350.
Max, forget about 100% since I already try it reset (not saving) so I back to 95% only.
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Posted: 2007-08-30 06:57:21
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