[REQ]SEMCCamera.apk tweaking - Sony Ericsson Xperia Neo, Pro

Can anyone tweak/mod the default camera.apk from 2.3.4 rom so that it gives full quality...i mean full 5~7 MB image size rather than 0.8~1 MB which washes out the sharpness from images
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Have you been able to get better quality photos with other applications? Do you think it is possible? I also expected better quality and bigger pics as it has 8mp

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I think just about 3MB image is enough. as images of IP4S, average about 3MB but very detailed and smooth.

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devrruti said:
Have you been able to get better quality photos with other applications? Do you think it is possible? I also expected better quality and bigger pics as it has 8mp
Click to expand...
Click to collapse
Ya, i tried vignette app on market(full version) and it gave minimum 4 MB pic in 8Mpix mode with superfine setting
But its UI is very complex and slow, thats why i don't recommend it...
What always happens with me with vignette is-As soon as i adjust the settings, the object changes its position and the shot goes in vain
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MaxMedia said:
I think just about 3MB image is enough. as images of IP4S, average about 3MB but very detailed and smooth.
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Click to collapse
I know what you are saying, but try the vignette app and shoot 1 steady object from camera app and vignette app
Both will give same results on device, but as you will transfer them on pc, you can easily spot the difference
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I just made 2 photo's
(one with stock app and one with vignette)
vignette is really slow by the way...
Vignette: 5,78MB
Stock: 1,14
but i really cant see any diffrence on my pc,
why would someone want a picture that's 4 times bigger...

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Marcell96 said:
I just made 2 photo's
(one with stock app and one with vignette)
vignette is really slow by the way...
Vignette: 5,78MB
Stock: 1,14
but i really cant see any diffrence on my pc,
why would someone want a picture that's 4 times bigger...
Click to expand...
Click to collapse
Try "HDR Camera Pro"

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In my opinion Camera360 takes slightly better pictures than the stock cam (with quality set to 90%, not 100% since that forces the same compression as the stock app).

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Marcell96 said:
I just made 2 photo's
(one with stock app and one with vignette)
vignette is really slow by the way...
Vignette: 5,78MB
Stock: 1,14
but i really cant see any diffrence on my pc,
why would someone want a picture that's 4 times bigger...
Click to expand...
Click to collapse
No bro zoom the pic to 100% and see the noise level and sharpness in both
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As this will only work for rooted phones(as you will need something like RootExlorer to change the file), you probably will have some knowledge in modding your phone, so here is a little How-To to do it yourself(tested):
You need apktool, SignApk, zipalign (search via forum).
- Copy system/app/SemcCameraUI.apk to your pc
- Copy system/framework/SemcGenericUxpRes.apk to your pc
- Copy system/framework/framework-res.apk to your pc
- apktool if framework-res.apk
- apktool if SemcGenericUxpRes.apk
- apktool d SemcCameraUI.apk
- find file "CameraController.smali" in extraced folder "SemcCameraUI\smali\com\sonyericsson\android\camera"
- insert these two lines at line 994 (next line after "setRotation")
Code:
const/16 v1, 0x64
invoke-virtual {v0, v1}, Landroid/hardware/Camera$Parameters;->setJpegQuality(I)V
- apktool b SemcCameraUI
- java -jar SignApk.jar certificate.pem key.pk8 <your new SemcCameraUI.apk> signed-SemcCameraUI.apk
- zipalign -v 4 signed-SemcCameraUI.apk signed-aligned-SemcCameraUI.apk
- copy the new apk to your phone (sdcard!) and name it SemcCameraUI.apk
- backup (copy) system/app/SemcCameraUI.apk to sdcard (somwhere)
- using f.e. root explorer mount system as r/w
- copy new apk to system/app (overwriting the old one)
- change file permissions (use the same ones as the other files in system/app, user needs r/w)
- reboot (not always necessary)
- find the camera icon and enjoy
Pictures are now using JPegQuality 100% resulting in approx. triple image size (from 800KB to 2.4MB in my test image). I'am seeing a slightly increase in picture quality (less artifacts), but don't expect to much (for better results you would probably have to mod the camera driver)...
As you know have a blueprint, you can do it for other FW-versions yourself

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frank_harmann said:
As this will only work for rooted phones(as you will need something like RootExlorer to change the file), you probably will have some knowledge in modding your phone, so here is a little How-To to do it yourself(tested):
You need apktool, SignApk, zipalign (search via forum).
- Copy system/app/SemcCameraUI.apk to your pc
- Copy system/framework/SemcGenericUxpRes.apk to your pc
- Copy system/framework/framework-res.apk to your pc
- apktool if framework-res.apk
- apktool if SemcGenericUxpRes.apk
- apktool d SemcCameraUI.apk
- find file "CameraController.smali" in extraced folder "SemcCameraUI\smali\com\sonyericsson\android\camera"
- insert these two lines at line 994 (next line after "setRotation")
Code:
const/16 v1, 0x64
invoke-virtual {v0, v1}, Landroid/hardware/Camera$Parameters;->setJpegQuality(I)V
- apktool b SemcCameraUI
- java -jar SignApk.jar certificate.pem key.pk8 <your new SemcCameraUI.apk> signed-SemcCameraUI.apk
- zipalign -v 4 signed-SemcCameraUI.apk signed-aligned-SemcCameraUI.apk
- copy the new apk to your phone (sdcard!) and name it SemcCameraUI.apk
- backup (copy) system/app/SemcCameraUI.apk to sdcard (somwhere)
- using f.e. root explorer mount system as r/w
- copy new apk to system/app (overwriting the old one)
- change file permissions (use the same ones as the other files in system/app, user needs r/w)
- reboot (not always necessary)
- find the camera icon and enjoy
Pictures are now using JPegQuality 100% resulting in approx. triple image size (from 800KB to 2.4MB in my test image). I'am seeing a slightly increase in picture quality (less artifacts), but don't expect to much (for better results you would probably have to mod the camera driver)...
As you know have a blueprint, you can do it for other FW-versions yourself
Click to expand...
Click to collapse
Could you supply some samples? I'd just like to see whether the capturing of fine detail has improved a bit.

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But if we already tweaking, can we port 2.3.4 camera apk to 2.3.3.
I asking because i dont want use 2.3.4...but i want use video recording Zoom
Cheers!
Taavi
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I will up some shots when i am back at home.
Regarding backporting:
1. Have you tried running the 2.3.4 apk on 2.3.3?
2. I have not tried it, but may be you can just switch framework libs to 2.3.3 just before doing the "apktool b".
Regards,
Frank

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frank_harmann said:
I will up some shots when i am back at home.
Regarding backporting:
1. Have you tried running the 2.3.4 apk on 2.3.3?
2. I have not tried it, but may be you can just switch framework libs to 2.3.3 just before doing the "apktool b".
Regards,
Frank
Click to expand...
Click to collapse
Im already tryed....only force close.
Old camera im remove via adb and new pushed via adb...permussions set right and only force close
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Regarding quality here are some infos from jpegsnoop:
Original apk:
Code:
Filesize: [832205] Bytes
Approx quality factor = 86.93 (scaling=26.13 variance=1.22)
Compression stats:
Compression Ratio: 29.09:1
Bits per pixel: 0.83:1
Modded 100% apk:
Code:
Filesize: [2360386] Bytes
Approx quality factor = 96.95 (scaling=6.11 variance=1.09)
Compression stats:
Compression Ratio: 10.19:1
Bits per pixel: 2.36:1
BUT, the real problem in both files is this:
Code:
Chroma subsampling: 2x2
This means the native driver is using 2x2 chroma subsampling (regardless of compression level). I am not sure if it is possible to change this to 2x1 (like K800i or most digicams use). If it is possible it has to be done on driver level (though i tend to believe this is some hardware limitation).
Background: www#.#impulseadventure#.#com/photo/chroma-subsampling.html and www#.#impulseadventure#.#com/photo/jpeg-quality.html
Example pics to follow when i am back at home....

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Hi frank,
As you said that 3 apk files, so i hope you can post them here so that people can just copy and paste them into /system/app and /system/framework
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