Tool to check and increase the percentage of zero value pixels in a wallpaper.

[AyanBhunia]

Personally, I prefer wallpapers that can use the AMOLED screen and save some battery life. Therefore, every time I change my wallpaper, I have to use another tool to check if the black pixels are actually #000000.

You can display a percentage to show how many pixels in a particular wallpaper have a zero value. Additionally, it would be helpful if you added a tool that changes nearest points to zero; and we could adjust the depth of the change.

Like this AMOLED wallpaper downloaded from internet source :

This have only 768 zero value pixels out of 2592000. This means that the entire red color area of the image will be displayed.
Turn off percentage: 0.03%

In the application you can show the percentage of zero value pixels in images. Also , a tool to change near zero values to zero with a slider .
The tool can ;method 1 just modify every pixel to zero if value is smaller than x. For bigger x or depth we will lost the in between darker pixels.

for x = 5.
Turn off percentage: 23.5%.

left is original image ,the black area from middle image will turn off screen pixels and right image is modified.

for x = 15.
Turn off percentage: 69.6%.

Method 2 , the tool can use a weighted function which will modify pixels to zero if smaller than x and decrease other pixels value more if they are near x. Using simple function like pixel = (pixel - x*x/pixel) will give.

For x = 5,
Turn off percentage: 23.5%.

For x = 15,
Turn off percentage: 69.6%.

For x = 25,
Turn off percentage: 91.3%.

If I were good at mobile app development, I would do it myself. So, it will be great if you add this feature in the app.

[codenameakshay]

Woah, that's quite insightful. I will try to implement this in the next update, this is a great idea.