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I want to create a simple Object detection tool. So basically an Image will be provided to the tool and from that, it has to detect the number of objects.

For eg

An image of a dining table which has certain items present on it such as plates, cups, forks, spoons, bottles etc.

The tool has to only identify the number of objects irrespective of the type of object. After identifying it should return the position of the object with its size so that I can draw a border over it.

I don't want to use any library or API present such as Tenser Flow, OpenCV etc.

If the process is very difficult to be created without using an API then the number of/type of objects which it will count as an object can also be limited but since this project will be for my educational/learning purpose can anyone help me understand the logic using which this can be achieved? For eg, it may ignore a napkin present in the table to be counted as an object.

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    $\begingroup$ Why don't you want to use libraries like Tensorflow or OpenCv? Project that you described will probably take months or even years, if you want to write whole processing pipeline from scratch. $\endgroup$ – don_pablito Aug 28 '18 at 8:49
  • $\begingroup$ @paffciu Thanks for the answer. I totally agree with your point. The reason I don't want to use a library is that I want to have an experience on this topic for educational purpose. I don't mind even if the object detection is not fast, not very much accurate or can identify very few objects be it 2-5 objects but that will add to my knowledge & experience. Can you please help with the logic on how an object is detected? $\endgroup$ – Rahulrr2602 Aug 28 '18 at 9:05
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If you want to get experience, you should probably start with some easier task. Object detection and localization is relatively hard and writing neural network and image processing pipeline from scratch will take you a long time.

If you want to build up intuition how NN's work, you might want to code some simple task from scratch. This is an example.

When you got some intuition how NN's work, then you should proceed to your task. In here you have similar question and answer prvided. Current state-of-the-art approach for your task would probably be point 3, that is object detection network, like YOLO or Faster-RCNN.

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  • $\begingroup$ Thank You very much for the answer and guidance. Will start with something easier and then move on to object detection. Thanks. $\endgroup$ – Rahulrr2602 Aug 29 '18 at 12:25

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