check this out it should help you read other dngs https://github.com/KillerInk/FreeDcam/blob/master/app/src/main/jni/freedcam/DngStacker.cpp

alternativly demosaiced bitmap https://github.com/KillerInk/FreeDcam/blob/master/app/src/main/jni/freedcam/librawutils.cpp

When I perform these sequences of events, the app loses activity state after double screen rotation:

1. Go to the Main activity
2. Tap in Saturation map
3. A screen similar to this will appear:

Before rotation:

4. Force the pause from the activity and then return to the activity (double screen rotation). Note that the app is back to the main activity.

The expected behavior is the return to the state of the previous image.

However, the app is back to the main activity.

After rotation:

Note:

• The pause from activity(1) can be performed in several ways. We suggest using a double rotation (starts in portrait, goes to landscape, and back to portrait) with this function previously enabled in the smartphone.
• Double screen rotation: It is executed twice to reach a state that should be exactly the same as the screen before if no data loss occurred.
• A data loss problem occurs when data is accidentally deleted or state variables are accidentally assigned with default or initial values.

Device:

• Device: Moto G30 with OS: Android 11
• Version: 5
• Device language: English

1. https://developer.android.com/guide/components/activities/activity-lifecycle

Hi Amir,

I am using your application on poco f1 running android 11 and whenever i try to process any raw file through your application output file comes totally black tried mutliple time and all-time same result. Could you please help me to address this issue.

I shot raw file with gcam.

First of all thank you very much for this app, is very useful to simplify the workstream.

I just got a Huawei P smart Z (STK-LX1), my first phone with RAW support, and the JPG images are getting too dark, about one or two EV under the reference JPG, on a consistent baisis.

Perhaps a simple solution would be add an option to tweak the white point.

Based on some simple tests with a couple pictures, it would seem (at least on my device) that, after processing, the image is between about .5 and .75 EVs darker than before processing. I'm not sure if this is something that could easily be fixed by changing how the gain map is applied internally, but in any case, I think an automatic exposure compensation pass would be a nice option to have.

Perhaps a simple algorithm could be to average the brightness values for all the pixels, then, if it's within a certain range of 50% brightness, adjust the exposure (or maybe gamma to preserve the endpoints? Not sure how that would look, and probably more complicated to do) to make the average match the midpoint.

For now, a suitable solution is to offset the exposure when capturing the image, but that makes it harder to determine what the final image would look like when setting up the shot.