Merge pull request #142 from giorez/main

Update Camera.md

Author: x1y

content/documentation/PinePhone_Pro/Camera.md

@@ -15,32 +15,33 @@ The PinePhone Pro has two cameras, Sony IMX258 with 13MP as rear camera and Omni
 
 As mentioned in [Software State](/documentation/PinePhone_Pro/Software/Software_state/), the cameras are work-in-progress, including a required DTS fix, userspace still needs to do some catching up and there is a green image tint. This article explains how to fix camera sofware on your PinePhone Pro. The work is on progress and will be available soon for different distributions. Make sure your PinePhone Pro is connected to the web to download needed software.
 
-### Arch Linux ARM + Phosh Installation
+## Arch Linux ARM + Phosh Installation
 
-Open terminal and update your system
+Open terminal and update your system:
 
 ```console
 $ sudo pacman -Syyuu
 ```
 
-Remove original Megapixels app
+Remove original Megapixels app:
 
 ```console
 $ sudo pacman -Rns megapixels
 ```
 
-Install camera dependencies
+Install camera dependencies:
+
 ```console
 $ sudo pacman -Syu gst-plugin-libcamera libcamera-tools pipewire-libcamera
 ```
 
-Install flatpak software manager
+Install flatpak software manager:
 
 ```console
 $ sudo pacman -S flatpak
 ```
 
-Install Megapixels2 app
+Install Megapixels2 app:
 
 ```console
 $ flatpak install https://flatpak.brixit.nl/megapixels2.flatpakref --user
@@ -52,7 +53,6 @@ You will be prompted to some options
 * Configure this as new remote 'flathub' [Y/n]: y
 * Required runtime for me.gapixels.Megapixels/aarch64/master (runtime/org.gnome.Platform/aarch64/47) found in remote flathub. Do you want to install it? [Y/n]: y
 
-
 To launch camera app you can both click on Megapixels icon on your desktop or enter into terminal following command
 
 ```console
@@ -68,4 +68,28 @@ $ flatpak uninstall --unused
 $ flatpak repair
 ```
 
+## Green Tint Issue
+
+To fix the green tint issue during post processing of your pictures, add "-a" and "-f" to dcraw line (about #82) into postprocess.sh file
+
+First look for postprocess.sh file:
+
+```console
+$ cd ../..
+$ sudo find / -type f -name postprocess.sh
+```
+
+Goto the postprocess.sh directory you found using the above command. Here the example */var/lib/flatpak/app/me.gapixels.Megapixels/aarch64/master/[...]/files/share/megapixels/postprocess.sh* is used:
+
+```console
+$ cd /var/lib/flatpak/app/me.gapixels.Megapixels/aarch64/master/[...]/files/share/megapixels
+```
+
+Backup original file and add "-a" and "-f" to dcraw line, using replace command:
+
+```console
+$ sudo cp postprocess.sh postprocess.sh.bk
+$ sudo sed -i 's/$DCRAW +M -H 4 -o 1 -q 3 -T "$@" "$MAIN_PICTURE.dng"/$DCRAW +M -H 4 -o 1 -q 3 -T -a -f "$@" "$MAIN_PICTURE.dng"/' postprocess.sh
+```
+
 Further details regarding the camera and the Megapixels camera app can be found on [Martijn’s blog](https://blog.brixit.nl/tag/phones/).