Other its possible search a image inside a image?

[Douglas Farias]

Hi everyone, everything fine?
I will ask here but I have never seen it. it's something I don't even know if it's possible to do in B4X.

I need to know if an image has another image inside.
Search for an image and return true or false.


Example...


I need to know if this emoticon above is inside the following image, regardless of size and location.



in this case the response will be TRUE. the emoticon icon is on the black image.



is it possible to do this in b4x? is there something ready for this? where can i start with little knowledge?


thanks!

 

[Star-Dust]

Yes

 

[Pendrush]

One of possible many solution OpenCV - Feature Matching also Template Matching in OpenCV.

 

[Brian Dean]

where can i start with little knowledge?

Unfortunately @Star-Dust did not answer this part of your question. Unfortunately, I cannot answer it either, but maybe somebody can.

 

[Star-Dust]

Unfortunately @Star-Dust did not answer this part of your question. Unfortunately, I cannot answer it either, but maybe somebody can.

I answered the first question, if it was possible to find a recognition within an image. But I can't answer all the questions myself, I give space to others too, it wouldn't be right otherwise

 

[Star-Dust]

One of possible many solution OpenCV - Feature Matching also Template Matching in OpenCV.

Based on what @Pendrush correctly suggested you can use the wraps made for OpenCV. Douglas wrote B4X and I assume he means cross-platform.

For B4A see here

OpenCV 3.x

OpenCV (Open Source Computer Vision Library) is a really huge project/framework actively developed, mainly written in C++ . It is released under a BSD license. Read more here: http://opencv.org/ OpenCV versions: https://opencv.org/releases/ OpenCV library for B4A: wraps the official OpenCV...

www.b4x.com

OpenCV real time car detection examples, by @moster67 (and friends)

This is a full working example of real time ObjectDetection (in this case, cars) using cascadeClassifiers, getting the input from a recorded video file, making use of Videocapture. The example was written by @moster67 who kindly gave me permission to publish it here. I have only tuned a couple...

www.b4x.com

For B4J see here:

jOpenCV library - Computer Vision with B4J

OpenCV (Open Source Computer Vision Library) is a library of programming functions mainly aimed at real-time computer vision. Originally developed by Intel, it was later supported by Willow Garage then Itseez (which was later acquired by Intel). Read more here: http://opencv.org/ OpenCV...

www.b4x.com

For B4i see here

https://www.telefonino.net/app/uploads/2021/06/Telefonino.net-IV-2160x1350-1-63-1060x424.jpg

 

[Brian Dean]

But I can't answer all the questions myself, I give space to others too, it wouldn't be right otherwise

You are right, of course, @stardust. I should have kept my mouth shut.

 

[Star-Dust]

I would not overlook this interesting example from @Erel

find Area in Image

Hello, im searching for a solution to find a given Area in an Image. I want to make screenshots and simulate Mousclicks on specific areas when something is found. the Area bitmap is fix in my assets, and i need the coordinates where this little Area image is shown in the screenshot. this area...

www.b4x.com