Esato Forums - Sony Ericsson / Sony : Software, Firmware and Drivers : Super camera driver for k750/w800/w810

Index Menu

> New Topic
> Reply
< Esato Forum Index > Sony Ericsson / Sony > Software, Firmware and Drivers > Super camera driver for k750/w800/w810 Bookmark topic

Page < 1 2 3 ... 404405406 ... 996 997 998 >

radicalgel Posts: 98

@SPU

Hey ive been testing your 1.3b4 and the indoor shots are great now. When I take outdoor shots in bright sunlight my pics are really grainy and full of noise when I lock AE, set ISO to 100 & adjust shutter speed where as the shots are really good when I lock AE, set ISO to max (1600 i think) and then set shutter to auto (1.0). Is this normal? Just asked cause theoretically ISO adjusts the image sensor's sensivity to light so higher the ISO, higher the brightness and higher the noise in the image. This theory holds good for indoor shot but not for outdoor shot. Any thoughts. Both pics taken with WB set to daylight.

AE lock, ISO = 100, manual shutter: Heavy Noise

AE lock, ISO = 2.3, manual shutter = 1.0, saturation = 4.0: Rich Clear Pic (over saturated because I set the level at max)

_________________
-----------------------------------------------
Life is a long song

[ This Message was edited by: radicalgel on 2007-06-17 07:53 ]

[ This Message was edited by: radicalgel on 2007-06-17 07:54 ]

[ This Message was edited by: radicalgel on 2007-06-17 07:58 ]
--
Posted: 2007-06-17 08:50:27
Edit : Quote

SPU Posts: 131

radicalgel
Something strage... What about EXIF information? Seems like AE lock is off. Btw, very bright scenes can have a heavy noise (on dark picture parts) even on ISO 100. But this is not your case.
--
Posted: 2007-06-17 09:14:23
Edit : Quote

Raiderski Posts: > 500

right, all we can do is set an upper limit since its dynamic and not set to one compression value every time.. interesting

well, something what i was talking about some time ago...
SPU can you please point what is the aim for encoder?

1. to keep the output file sizes constant
2. to achieve biggest possible defined in driver compression %
3. encoder can recognize that there is not need to use high compression % if image content is low detail and will produce small file size

this is very important from image content point of view. if point 3 isn't fulfilled that's bad. low detail images near 550kb/95% - no thanks...

--
Posted: 2007-06-17 10:59:30
Edit : Quote

ziupo Posts: 74

Sarmadgiliani - I think about special version 5.7 witch VIVID and sharpness set to 4 in default

Sarmadgiliani can you modify your driver to my proposition?
--
Posted: 2007-06-17 12:18:36
Edit : Quote

kukuh Posts: 53

relax friend!

enjoy my pictures

--
Posted: 2007-06-17 13:00:33
Edit : Quote

SPU Posts: 131

Raiderski
1. You can't get a constant file size. We can talk only about average size.
2. If you are talking about the "classic" way (like in original SE driver), you can get crashes on qualities above 75%. But this depends on other settings like maximum file size.
3. That is the "classic" way. Quality has an approximatelly low upper limit.

Let
SQ - starting (initial) quality
IQ - intermediate (average) quality
EQ - end quality
CQ - current quality
MINS - minimum file size
MAXS - maximum file size
AVGS - average file size
RS - resulting file size.

1. First of all encoder sets CQ=SQ and makes a jpeg.
2a. If MINS2b. if not, it goes to the jpeg_qtable_factors table and calculate the next value: X=RS/jpeg_qtable_factors[CQ]
3. After that it looks in the jpeg_qtable_factors for such index INDX that the value X*the jpeg_qtable_factors[INDX] is closest to the AVGS, but greater then MINS, and less then MAXS (and INDX must be less than EQ (or more than EQ if EQ<SQ))
4. Now encoder sets CQ=INDX and finally makes a resulting jpeg.

Note that:
1. X*the jpeg_qtable_factors[INDX] is just an approximation of resulting size and RS easily can be greater than MAXS.
2. such INDX may be not exist.

Conclusion: you still must think a lot about the params to avoid crashes or strange behaviour.

_________________
W800i CID36 R1BC002

[ This Message was edited by: SPU on 2007-06-17 14:06 ]
--
Posted: 2007-06-17 13:06:13
Edit : Quote

F-Lexx Posts: 163

what driver did you use and what settings? And what phone do you have?
--
Posted: 2007-06-17 13:06:43
Edit : Quote

Raiderski Posts: > 500

@SPU
thx. ofcourse i wrongly use "constant" word because i wrote this in rush and i couldn't fit proper word, something like "files size on comparable level" bla bla

@kukuh
2nd pic is nice but do i see noise remove software work? if yes then i don't get it. why not to show pic as it is in original form? if not then apologies for the suspicion

--
Posted: 2007-06-17 14:57:18
Edit : Quote

smw0130 Posts: 8

Sarmad Driver

Macro Off