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Author Topic: [MOD] N8 new camera mods (better bitrate, 30fps in 720p and 480p, quality...)  (Read 17168 times)
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tysonraylee
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« Reply #30 on: 11 August 2011, 06:40 »

will there really be any difference?
Because i remember using one such mod long time back but it didnt really provide any difference compared to the default camera.
Though it only increased the picture size.
It would be very helpful if you could include some pics and videos showing the difference
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jnx_r
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« Reply #31 on: 11 August 2011, 07:15 »

will there really be any difference?
Because i remember using one such mod long time back but it didnt really provide any difference compared to the default camera.
Though it only increased the picture size.
It would be very helpful if you could include some pics and videos showing the difference


tysonraylee you are right,
there is a very slight difference because of the compression algorithm
that being said,
the pictures do not look any different till it is observed in zoom from 100-400%
otherwise for normal viewing we will never notice the difference other than the picture size,
but there is a small difference;

GO through these links for understanding better:

http://www.gsmarena.com/nokia_n8_gets_better_stills_30_fps_video_with_continuous_autofocus-news-1997.php
http://thenokiablog.com/2010/11/05/nokia-responds-nokia-n8-hyperx-hack/
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jnx_r
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« Reply #32 on: 11 August 2011, 10:44 »

yes, ill try. so. too many megapixels on a small sensor can be bad for imagequality. the perfect resolution ist between 6 and 8 megapixels.

understand?


yes but its a sensor like in normal cameras. this sensor is normally still too small for 12mp.


really? hmm i remember that nokia said they build in a sensor like in normal cameras.

but the sensors are really too small for such a big resolution

i give you a link http://6mpixel.org/en/


I think this needs some clarification:

the 12mp senseor in the N8 is 1/1.83" agreed (did you know its larger than many compacts too which are still using 1/2.5" sensors)



A.Sony Cybershot HX5   B.Samsung Pixon12   C.Nokia N8
SIZE   (1/2.4")                     (1/2.5")               (1/1.83")

Its still larger than many compacts and all mobile phones till date,
And the N8 is quite capable of handling 12mp native resolution quite easily.

Each sensor has 12,000,000 individual pixels which all sense light separately,
Now take the case that you are using it with five megapixels instead of twelve,

then depending on the algorithm used by the camera app,
it can either choose to shut down individual redundant pixels, or combine the output of multiple pixels to form an individual  larger pixel,
or take the output of twelve megapixel and downsize it to five megapixels,
or some other method which I may not know (sorry for being ignorant)

While also reducing noise and other artifacts to some extent,
all of the above methods specified above will reduce the amount of detail in the the photo.

Let me explain,
Do you not think 12,000,000 will capture more detail than 5,000,000?
If five megapixels were to be interpolated and reproduced at twelve megapixels then the quality would be better with five megapixels as you said,
But we are talking about twelve million individual pixels, no interpolation, no gimmicks, yes 12MP
So when you use anything lower than 12MP you lose detail, maybe not that much but yes, there is a loss.

If you dont believe me you can check this yourself,
Take a cloth which has a very fine texture and or some paper with different sizes of printed material also including very fine ones,
Shoot in both resolutions using macro mode and you will see the difference..

The best way is to use an image comparison chart, like this one:
http://www.gsmarena.com/piccmp.php3

And if you still say megapixels dont mean anything;

here you go:
in gsmarena's words:
"Monitoring the user feedback of our two Pixon12 previews we noticed an interesting trend among the active photo critics on the web - somehow it became very fashionable to claim that the megapixel count is hardly that of an advantage. You know - that it's all about the quality of lens and stuff. While this is undoubtedly true in theory and in practice with some dedicated digital cameras, it is not quite so with the cameraphones.

The truth is that more than often manufacturers purchase in bulk the entire camera modules, including the lens, the sensor and some of the processing hardware. Then, all they do is tune the output by tweaking the processing settings.

That's the reason why the 12MP camera modules come with higher quality lens than the 8MP ones, which in turn most of the time outdo the 5MP modules and so on. Having tested our fair share of cameraphones we can safely conclude that it is extremely rare for a lower-resolution cameraphone to produce better photos quality than a higher-res one. So, in fact the megapixels mean something. Well, maybe not as much as the marketing tries to convince us but they do have an impact."

Source:
http://www.gsmarena.com/samsung_m8910_pixon12-review-371p6.php

So finally its up to the user,
does he want more detail and the added benefits of the twelve megapixel sensor on the phone
or
just a smaller photo which might look a little better?
(not really sure if it will be indeed better in some methods the lower the resolution, worse becomes the quallity, but surely not noticeable to the naked eye)

PS: Almost forgot,
I like the mods, nice work +1 for you Smiley
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jnx_r
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« Reply #33 on: 11 August 2011, 11:59 »

zooY,
I have a suggestion for your camera mod,
Could you do this?

Photo mods:
A.
12MP @ 95% quality
9MP @ 97% quality
8MP instead of 3MP @ 97% quality
5MP instead of 2MP @ 100% quality
3MP instead of 0.3MP @ 100% quality

B.
12MP @ 95% quality
8MP instead of 9MP @ 97% quality
5MP instead of 3MP @ 100% quality
3MP instead of 2MP @ 100% quality
2MP instead of 0.3MP @ 100% quality

C.
12MP @ 95% quality
9MP @ 97% quality
8MP instead of 3MP @ 97% quality} 8 & 6 interchangable via pinch zoom like 12 and 9
6MP instead of 2MP @ 100% quality} 8 & 6 interchangable via pinch zoom like 12 and 9
5MP instead of 0.3MP @ 100% quality


And Video Mods:
A.
720p @ 30fps (normal mode) with max Bitrate possible
720p @ 22fps (low light mode) with max Bitrate possible
720p @ 12fps (night mode) with max Bitrate possible

480p @ 30fps (normal mode) with max Bitrate possible
480p @ 22fps (low light mode) with max Bitrate possible
480p @ 12fps (night mode) with max Bitrate possible

B.
720p @ 30fps (normal mode) with max Bitrate possible
720p @ 24fps (low light mode) with max Bitrate possible
720p @ 15fps (night mode) with max Bitrate possible

480p @ 30fps (normal mode) with max Bitrate possible
480p @ 25fps (low light mode) with max Bitrate possible
480p @ 15fps (night mode) with max Bitrate possible

C.
720p @ 30fps (normal mode) with max Bitrate possible
720p @ 20fps (low light mode) with max Bitrate possible
720p @ 10fps (night mode) with max Bitrate possible

480p @ 30fps (normal mode) with max Bitrate possible
480p @ 20fps (low light mode) with max Bitrate possible
480p @ 10fps (night mode) with max Bitrate possible

The combinations will result in nine files altogether
Try constant bit rate over 10,000kbps for 480p,
For 720p, I have got some times bitrate upto 15,000kbps.
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jnx_r
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« Reply #34 on: 11 August 2011, 12:01 »

Camera mods quality check:

I checked the quality of mods, here it is below:

Original 85% compression
shot to shot time lowest <2 secs if preview and auto focus is set off
Space requirements min to max 800-2.8 mb
Averave size ~ 1.25-1.4mb
Save and preview time lowest
Sensor errors nil

95% compression
shot to shot time lowest <2 secs if preview and auto focus is set off (exactly same as 85% in some cases lower)
Space requirements min to max 3-5.8 mb
Averave size ~ 3.4-4mb
Save and preview time lowest
Sensor errors nil

97% compression
shot to shot time comparable to 2 secs if preview and auto focus is set off (slightly greater than 85 & 95 %)
Space requirements min to max 4.6-7 mb
Averave size ~ 5.0-5.6mb
Save and preview time higher than both 95% and 85% >4secs
Sensor errors not observed any yet but could be present

100% compression
shot to shot time high about 2.8-3.6 secs or greater in some cases if preview and auto focus is set off (highest)
Space requirements min to max 7.7-13.6 mb
Averave size ~ 8.8mb
Save and preview time highest about >5-6 secs
Sensor errors could be present in some pics like when the shutter speed is very high

Considering all these factors only 95% mods are providing quality as well as efficiency

I have not performed any of these tests for video but N8 capable of 15mbps is good enough for 720p@30fps,

though some claim that stock 25 fps will be better than 30,

30 fps will be much more smoother in case of sports and daily use,
if you are shooting landscape or stationary objects 25 or 24fps will be more preferrable because it will capture more detail in each frame and still the bitrate will be as high as with 30fps 15mbps,

so ultimately choice is between smoother videos and more detail,
(smoothness is immediately visible in comparison to detail as the bitrate is so high there is already a lot of detail in it)
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« Reply #35 on: 11 August 2011, 12:05 »

zooY,
I have a suggestion for your camera mod,
Could you do this?

Photo mods:
A.
12MP @ 95% quality
9MP @ 97% quality
8MP instead of 3MP @ 97% quality
5MP instead of 2MP @ 100% quality
3MP instead of 0.3MP @ 100% quality

B.
12MP @ 95% quality
8MP instead of 9MP @ 97% quality
5MP instead of 3MP @ 100% quality
3MP instead of 2MP @ 100% quality
2MP instead of 0.3MP @ 100% quality

C.
12MP @ 95% quality
9MP @ 97% quality
8MP instead of 3MP @ 97% quality} 8 & 6 interchangable via pinch zoom like 12 and 9
6MP instead of 2MP @ 100% quality} 8 & 6 interchangable via pinch zoom like 12 and 9
5MP instead of 0.3MP @ 100% quality


And Video Mods:
A.
720p @ 30fps (normal mode) with max Bitrate possible
720p @ 22fps (low light mode) with max Bitrate possible
720p @ 12fps (night mode) with max Bitrate possible

480p @ 30fps (normal mode) with max Bitrate possible
480p @ 22fps (low light mode) with max Bitrate possible
480p @ 12fps (night mode) with max Bitrate possible

B.
720p @ 30fps (normal mode) with max Bitrate possible
720p @ 24fps (low light mode) with max Bitrate possible
720p @ 15fps (night mode) with max Bitrate possible

480p @ 30fps (normal mode) with max Bitrate possible
480p @ 25fps (low light mode) with max Bitrate possible
480p @ 15fps (night mode) with max Bitrate possible

C.
720p @ 30fps (normal mode) with max Bitrate possible
720p @ 20fps (low light mode) with max Bitrate possible
720p @ 10fps (night mode) with max Bitrate possible

480p @ 30fps (normal mode) with max Bitrate possible
480p @ 20fps (low light mode) with max Bitrate possible
480p @ 10fps (night mode) with max Bitrate possible

The combinations will result in nine files altogether
Try constant bit rate over 10,000kbps for 480p,
For 720p, I have got some times bitrate upto 15,000kbps.

hmmm... good idea. will take a look at it!

---EDIT---
ok, making it, but will take some time, and it wont be identical to your idea.
altought im working on a suprise mod for you guys:) one tip: hasnt got anything to do with camera! but you'll like it!

---EDIT---
1st post edited
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zooY
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« Reply #36 on: 11 August 2011, 12:14 »

i want 12MP with 100% quality, which one should i choose?

one of the mods that has 100% in its name
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« Reply #37 on: 11 August 2011, 15:18 »

hmmm... I think i make a version for them that dont want to change the resolution. Will upload it this evening...

---1st post updatet---

That's awesome mate, i have try it and it work just like what i want, the 6mpx and 9mpx... I love both of them Cheesy +1 added
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« Reply #38 on: 11 August 2011, 16:35 »

thanx mate. good you like it Cheesy
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jnx_r
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« Reply #39 on: 11 August 2011, 17:52 »

+1 mate for you again
the mods are great,

another suggestion,
To make these as the complete camera mod pack you need to add two more features:

1. Silent option in camera shutter sound (its absent in some N8s check my post here http://forum.dailymobile.net/index.php?topic=37955.msg551930#msg551930)

2. Continuous autofocus, It seems like the autofocus bug is absent in PR2

thats it then these mods will be perfect

PS: If these options already present in your mods, please ignore this
And i wanted to ask, what is the fps for low light? I recommend 22fps
I asked because i did not find in mods description
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« Reply #40 on: 11 August 2011, 18:00 »

Great work zooy. +1 for your great work Cheesy

One more request: is it possible to have a change only in video bit rate, i mean photos should be default but the video should be changed from 25fps to 30fps without mp change on all resolution or at least 30fps on 12mp and 30fps on 9mp ?
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« Reply #41 on: 11 August 2011, 20:13 »

one of the mods that has 100% in its name

ok...but one more question if i use that does im still geting CAF on video recording?
btw +1
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« Reply #42 on: 12 August 2011, 00:54 »

no i didnt change fps in low light mode. Didnt know how to do (sorry but its my first mod. Maybe when i know bit more about modding ill try.sorry guys)  and caf: hmmm will search the file (if its not the same) to make it. And going to make a version just with video change. But tomorrow.     anyway, thanks for trying dudes! And thanx for all the new ideas Smiley +1 to you all!
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« Reply #43 on: 12 August 2011, 02:22 »

ok...but one more question if i use that does im still geting CAF on video recording?
btw +1

 you should. Simply try it;) But if not, tomorrow or a day after tomorrow im going t release a version with caf (and camera sound mude) mod (+ a version just for video settings). But first of all, good night ;P
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« Reply #44 on: 12 August 2011, 05:10 »

The caf still working well, when i use this mod, nothing change in video recorder.
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