Android Question Auto cropping image

[Matteo Granatiero]

I would like to automatically crop an image by removing the background like this:

 

[Sandman]

What have you tried, and what is your question?

 

[aeric]

I think it needs AI or some kind of algorithm to achieve it.

 

[Sandman]

I think it needs AI or some kind of algorithm to achieve it.

My first thought: LOL

My second thought: Oh, @aeric might mean actually removing background like this:

My interpretation of the non-question was this:

Meaning, removing background by cropping using a bounding box. (Shown as red outline here.)

We'll see if @Matteo Granatiero adds some background (pun intended) and perhaps even a question.

 

[Matteo Granatiero]

My first thought: LOL

My second thought: Oh, @aeric might mean actually removing background like this:
View attachment 89513

My interpretation of the non-question was this:
View attachment 89516
Meaning, removing background by cropping using a bounding box. (Shown as red outline here.)

We'll see if @Matteo Granatiero adds some background (pun intended) and perhaps even a question.

yes this is my question, sorry if I haven't been clear and specific ahaha

 

[Sandman]

So, to be clear, you're looking to do this: Automatically crop an image to the bounding box?

It seems to be a quite simple problem to solve, what have you tried and what are your questions?

 

[Matteo Granatiero]

My question in removing backrground like this:

 

[Sandman]

In that case I will leave this thread with an ejector seat as I have nothing to contribute other than to say that as far as I know, this is an amazingly difficult problem to solve. Have fun.

 

[aeric]

I tried google search on github and found a repo

GitHub - GabrielBB/Android-CutOut: Android image background removing library

Android image background removing library. Contribute to GabrielBB/Android-CutOut development by creating an account on GitHub.

github.com

 

[Erel]

A bit related: https://www.b4x.com/android/forum/t...ind-minimum-bounding-rectangle.94779/#content

 

[Matteo Granatiero]

A bit related: https://www.b4x.com/android/forum/t...ind-minimum-bounding-rectangle.94779/#content

but this is only to eliminate the transparent background, but in case of NOT transparent background?

 

[canalrun]

This sounds like it could be a job for OpenCV.

There have been a few ports to OpenCV for B4A over the years. There may be a function that allows you to isolate an object within an image – I'm not sure.

As someone else posted, this seems straightforward but it is an incredibly difficult problem.

Barry.

 

[Erel]

but this is only to eliminate the transparent background, but in case of NOT transparent background?

This is only for transparent background, that's why I wrote that it is only "a bit related".
BTW, the image from the first question can be handled with a similar code. As already written several times there is a huge difference between removing a solid color background and removing real world background. These are completely different tasks.

 

[Sandman]

there is a huge difference between removing a solid color background and removing real world background

this seems straightforward but it is an incredibly difficult problem

These are completely different tasks

I was holding off on posting this xkcd comic as I didn't want to dilute the thread, but I feel the planets are aligning so much that I can't resist anymore: