Camera api on a13 5g - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Which app is good?
The camera produces good result.
But the stock app doesnt allow long exposure or low iso settings

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[Q] Camera mod to allow long exposure times?

Could be possible to develop a camera mod in order to allow using custom long exposure times with the camera?
In low light photography, if you want a minimun quality, you need a low ISO level and a long exposure time (holding the phone somewhere, using a tripod, etc). Since slowest shutter speed in Note 3 is 1/15s, it's actually too fast for night photos, so it could be good to break this limitation and use slower shutter speeds...
With my old Xperia Z, I got some tricks very good for low light, as using night scene (1/2s exposure time), or even fireworks scene (1s exposure time). These scenes allowed me to use low ISO levels and the detail level was amazing.
I perfectly know apps like Camera fv-5, night camera and some other stuff, and this is NOT what I mean. In camera fv-5, you are just "capturng" the screen streaming for a long time, so the resolution is very low (2mpx max), and if the scene is dark, there is no difference (you won't get a brighter scene). In Night Camera (or the night mode in A Better Camera), the phone takes some pictures and merges them (like an HDR), so it's not what I'm asking for either.
I think it's neccessary a real MOD which changes the samsung camera libs or something like that. I'm not a developer (just a photography enthusiastic) and I don't know if it could be possible, but I definitely would love it
Pd: sorry for my English.
Nobody?
Enviado desde mi SM-N9005 mediante Tapatalk
You mean FV5 doesnt really take long shutter mode photos?
nakulp said:
You mean FV5 doesnt really take long shutter mode photos?
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Exactly, camera fv-5 simply takes the real time info which is giving to the screen from the sensor (2mpx) for the time you want to, and merges it in a photo. This is not a real long exposure pic. Dark areas will remain dark and noisy due to high iso level and the "real" shutting speed, although this mode could be useful for light painting or nightrail shots...
Searching for this answer for quite some time now .. anyone has any mods / hacks ?

Couple of questions (camera fv-5, Raw, and build.prop)

I am using CM 13 build 6-26
currently camera fv-5 doesn't read the phone as capable of taking raw pics.. and reduces low light picture quality.
using OOS 3's camera i can do both of those... i just prefer the ui and option in camera fv-5.
what would trigger the app to register the phone to be able to do both of those?
build.prop tweaks or?
also.. the phone reports itself as a one.. not a two. ..
thoughts? info?
thanks
Hello,
Actually I noticed the same issue, camera FV5 recognize manual settings and can use camera 2 capabilities only on OxygenOS which is pretty disappointing.
I'm also forced to use the OxygenOS camera port which lack lot of settings and save jpegs with lot of compression...
Maybe CM lack some stuff.

Low light

At the club, at the bar, or just in your mom's basement, nighttime is when you come out to play. Rate this thread to express how the Moto X4's camera performs when no or low light is present. A higher rating indicates that the camera sensor "sees" lots of light in dim conditions, and that the resulting photos have minimal noise. A higher rating also indicates that when the flash fires, the resulting photo is evenly-lit without any bright spots.
Then, drop a comment if you have anything to add!
With flash it's 5 stars. Works pretty good without. Works as good as my S8.
I took some test shots on my phone today, using 3 different camera apps:
- The Stock Moto Camera
- The Stock Google Camera from the Play Store
- Modified Google Camera found Here. MGCB_7.0H_C2API_Full_PXL2_v.1.4_60FPS_noburst_v3
I tested in a large room with the lights off, and sunlight coming in. There are lots of shadows and dark areas, as well as very bright spots. I tested with HDR Off, HDR On, and HDR Auto (if applicable). I also threw in a wide angle, for comparison. (spoiler: Ew).
Some things that surprised me, in no particular order:
- The Stock Moto HDR actually did a decent job at brightening up the dark areas, and giving the shadows a bit of color. Not a ton of extra noise, either. However, the window was still washed out.
- Stock Google Cam didn't offer anything the others didn't, and HDR On/Off didn't seem to do a thing.
- Modified Google Cam definitely helped with the bright spots, as those are the only 2 pictures that you could see out the window, but it also introduced a LOT of noise in the shadows and dark areas. This is a known side effect of HDR in low-light, as I saw the same effect on my 5x when using HDR+ in low light.
I may try a different Modified Gcam, and try to input the settings manually. Hopefully that will result in better pics, as otherwise the Stock Moto camera seems to be our best bet for now.
The stock camera app in normal picture mode is not using good ISO/shutter speed combinations in low light at all. Take some and check the info on your images. It always goes for high ISO and faster shutter speed. It stops on 1/15 A LOT, and seems to adjust ISO from there. Switch to Professional Mode and force a slower shutter speed, lower ISO and now they look much better. HDR on this app is garbage with those auto focus settings too. It works much better with higher quality images with less noise, which the auto focus is incapable of providing in any low light situations.
I did some more tests with the v4.0 AIO modified Gcam, and there wasn't a difference.
I went back to the v1.4, and took some pics at home. These were very low-light, with candles the only light source in the room. I noticed similar trends:
Stock Cam is VERY blochy when you zoom in.
Stock HDR seems to brighten the whole image, but isn't very, you know, dynamic.
Stock Cam is way less noisy/blochy when you zoom in. It preserves much more detail.
Modified Gcam using HDR+ does a MUCH better job handling the candle light in the pic, as the light source isn't overexposed.
I may do some 100% crops and share them tomorrow, but Stranger Things 2 with the wife is more important atm. #sorrynotsorry.
crazyates said:
I did some more tests with the v4.0 AIO modified Gcam, and there wasn't a difference.
I went back to the v1.4, and took some pics at home. These were very low-light, with candles the only light source in the room. I noticed similar trends:
Stock Cam is VERY blochy when you zoom in.
Stock HDR seems to brighten the whole image, but isn't very, you know, dynamic.
Stock Cam is way less noisy/blochy when you zoom in. It preserves much more detail.
Modified Gcam using HDR+ does a MUCH better job handling the candle light in the pic, as the light source isn't overexposed.
I may do some 100% crops and share them tomorrow, but Stranger Things 2 with the wife is more important atm. #sorrynotsorry.
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I'm using the manual Google APK here with HDR+ and it's also using very high ISOs, even in pretty good light. I have a lamp behind me, lights on in the room and both apps are using an ISO2400. If I manually set the ISO to 1200 or lower, I can still take a good photo by manually adjusting the shutter speed to 1/15, 1/10, or even 1/8 (anything lower and it's blurred). This HW should be capable of blazing fast auto focus so there is zero reason it's setting the ISOs so high. High ISO = more noise, less detail. Fast auto focus should mean that lowering the ISO in low light will focus better, faster, with less blur from the slower shutter speed. Something ain't right here.
HDR+ will clean up the noise from the high ISO setting some.
FrozenOx said:
I'm using the manual Google APK here with HDR+ and it's also using very high ISOs, even in pretty good light. I have a lamp behind me, lights on in the room and both apps are using an ISO2400. If I manually set the ISO to 1200 or lower, I can still take a good photo by manually adjusting the shutter speed to 1/15, 1/10, or even 1/8 (anything lower and it's blurred). This HW should be capable of blazing fast auto focus so there is zero reason it's setting the ISOs so high. High ISO = more noise, less detail. Fast auto focus should mean that lowering the ISO in low light will focus better, faster, with less blur from the slower shutter speed. Something ain't right here.
HDR+ will clean up the noise from the high ISO setting some.
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That's odd. Is this an issue you've been experiencing on the optimum configs (manual version) or with both modded apps?
FrozenOx said:
HDR+ will clean up the noise from the high ISO setting some.
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Yeah, you're right on this. I did some more test last night, and the most consistent seems to be the modified Gcam HDR+. It preserves more detail while keeping the noise down.
Basically, I feel like these are all just playing around with settings and apks that are meant for other phones. I know the Gcam software can work wonders, and I know the sensor/ISP/DSP/CPU can support more than what the stock Moto Cam is doing, but getting a modded Gcam apk that's meant for out phones would be fantastic. Unfortunately, it'll take someone smarter than me to piece it all together.
Coming from a much older S3, the moto x4 camera is WAY ahead.
I have a small laser projector that only outputs 63 lumens.
The S3 camera could never get a photo on the highest setting.
The x4 camera does it easily.
Apples and Oranges possibly, but the camera is not nearly as "bad" as some
reviews stated.
That's Nobody said:
With flash it's 5 stars. Works pretty good without. Works as good as my S8.
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Is it really? I'm choosing between the S7 and the X4, the camera being the only thing making me lean towards the Galaxy.
gaurink said:
Is it really? I'm choosing between the S7 and the X4, the camera being the only thing making me lean towards the Galaxy.
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I had an S7 for work until recently. Hated it. Battery life is worse than X4, too much bloatware, and the fingerprint sensor on it suuuuucked. Rear camera was about the same as X4 but front was inferior. No contest. Get the X4.
Please think twice believing reviewers.
Most of them hated Moto X4's camera coz it has a sluggish and mediocre quality when it comes to depth (portrait mode).
BUT I can assure you that my Moto X4 performs on par with HTC 10 when it comes to ALL lighting conditions.
I took photos side by side and the quality is the same. I even found that the Moto X4 does NOT need to auto trigger HDR in the lowlight pic I took (HTC did auto trigger HDR).
Both HTC 10 and Moto X4 have minimal noise and really looks almost the same given that they are using a different ISP (SD 820 vs SD 630).
I'll try to upload both pics so you can check them as well.
Quick one from today.
The Galaxy S7 will definitely has a better camera quality BUT the X4 also has a pretty good camera so you won't get disappointed.
BUT I'd rather choose Moto X4 since it is a new device while S7 is already almost 2 generations older (S9 is coming).
forbidden8 said:
Quick one from today.
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Is this using the stock camera app?
varunbala said:
Is this using the stock camera app?
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Yes.
Four low light examples. They were taken in hostile lightning codtions by Gcam HDR+. No tripod. The quality and the dynamic range is at the same level as Nexus 5x, Pixel 1.
Can you share a gCam version that you use. And setting ...I try few, but for me quality of stock camera photos is better. Thx.
forbidden8 said:
Can you share a gCam version that you use. And setting ...I try few, but for me quality of stock camera photos is better. Thx.
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GCam5.1.018-Arnova8G2-V1.3-Front-HDR+
Nexus6p, nexus 6p, hdd+ on
tavcsor said:
Four low light examples. They were taken in hostile lightning codtions by Gcam HDR+. No tripod. The quality and the dynamic range is at the same level as Nexus 5x, Pixel 1.
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Does the portrait mode of gcam work?

Google camera hdr unlocked iso 9600 on le max 2!?

So I was just casually using Google's HDR camera and I wanted to push this camera to its limits so I take a picture in very low light conditions (btw this is one of the best cameras around right now with the Google Camera because the Le Max 2 was mostly lacking with noise and clarity, which the Google Camera helps to fix, and the Le Max 2 has the 21mp for superior detail, a very nice combination. I have a XZ Premium and even that can't compare to the Le Max 2 pictures with the Google Camera at all).The results at first was an ISO of 7450, then I pushed it even further and found the limit was 9600 . This is surprising to find out when the stock max ISO is 1600, please don't take this information as facts although as I can only identify what ISO the camera is running at by the pictures data.
And if the Google Camera does take pictures with an ISO up to 9600, there might be potential to allow the max ISO to be integrated into different camera apps or even system wide with our lovely developers.
I think the only thing holding the Le Max 2's camera capabilities right now is the exposure time as it is limited to just half a second, if we could unlock this exposure time to be something like 32 seconds (this does seem possible as I have seen it on the redmi note 4, and that takes amazing pictures at night with 32 second exposure) this camera could be amazing. Instead of the high noise at night with low shutter speeds (ISO 9600) we could have a low ISO and high exposure time for crisp and natural low light shots! If you got this far thanks for reading, I really appreciate it and if there may be something that is wrong please correct me as I am not a developer, just a person who loves tech, thanks!
Here is one of the images, and I know the metadata states the picture is taken on a Pixel 2 XL, this is because I used build prop to get Google Lens.
https://photos.app.goo.gl/f5iOUOOsvr9OWVZw2
I have done some testing and I believe it works on the the Gcam 4.4 and 5.1 custom HDR+ apks, although I have found out that the ISO only goes up to 9600 in HDR mode, without it the ISO is just like stock (1600), this could imply that the Google's algorithm uses a high ISO.
I_Raptor_I said:
I have done some testing and I believe it works on the the Gcam 4.4 and 5.1 custom HDR+ apks, although I have found out that the ISO only goes up to 9600 in HDR mode, without it the ISO is just like stock (1600), this could imply that the Google's algorithm uses a high ISO.
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How exactly do I get Google camera on my phone (le max 2) running eui 5.9.26s and rooted with magisk.
andrew0070 said:
How exactly do I get Google camera on my phone (le max 2) running eui 5.9.26s and rooted with magisk.
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Unfortunately we can't, it only works for android 7 (nougat) versions and above as I understood.
That was few months ago maybe something changed, but I doubt it.
Hi I_Raptor_I,
which Rom are you using?
I am using Resurrection Remix on Android 7.1.2 l, but I think this should work on all recent nougat ROMs with camera API 2 enabled, and if you where wondering this is where I download the latest Google Camera HDR apks:
https://www.celsoazevedo.com/files/android/google-camera/
I am using Arnova's 5.1.018_v1.3 this is a step up from all of the other Google Cameras in terms of photography as the zoom is fixed and zooms in the centre rather than the left which is good, it does have the new portrait mode and motion pictures but they are still very buggy, but the HDR looks much more refined (better quality and low light performance with less iso but more exposure giving more clear images), there is a HDR function for the front but that does not work yet also video does not work, so if you haven't noticed this is a camera app dedicated to mostly HDR pictures. The good thing about this camera is that you can install a MGC camera apk and they don't conflict so you have got a Google camera for video and photography, overall this app is still buggy but contains alot more features and detail, hopefully when this app comes out with its next update the user experience will become much more refined.

Low video framerate on rear camera when using manual exposure controls

When using manual exposure controls for video capture (through setting `CaptureRequest.CONTROL_AE_MODE` to `CaptureRequest.CONTROL_AE_MODE_OFF`), the best framerate that could be achieved is 19F/s, no matter what exposure time or sensor sensitivity is used. when auto exposure is on (`CaptureRequest.CONTROL_AE_MODE_ON`), it gets all the way up to 30F/s in good lighting conditions.
I assume it has to do with the vendor blob for the rear camera, since it doesn't happen with the front camera, and that blob seems to be quite problematic as seen here for example. Seems like they just rushed it then worked around any problems in MIUI (considering the stock camera app doesn't even provide manual controls for video).
Is there anything to be done about it?

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