OpenCV using Python to Detect any Object

asked 2018-12-05 08:10:37 -0500

Ameer Usman gravatar image

updated 2018-12-07 01:47:37 -0500

First timer here! :)

So ill keep it short. The objective is to detect any object placed on a black belt (can be grocery items, toys, pencils, well anything in the super store) while the belt will also be moving the objects with the camera placed on top at a 45 degree angle at the start of the belt. That's it, detect any object if it is on the belt.

Edit Major Addition: Here is something to go on, I took an image when the belt was empty and now ill just compare the image of the empty belt with the current image of the belt. What can i do to compare the images. I have used sobel filter followed by matchtemplate function but that isnt giving me very reliable belts as i have to keep the threshold very tight which will cause it to be a bit unreliable incase of slight variation.

res = cv2.matchTemplate(img_w,Template_Final,method) #match template function

min_val, max_val, min_loc, max_loc = cv2.minMaxLoc(res) #minimum and max values

(img_w the current image of the belt and Template_Final is picture of empty belt and method i am using is cv2.TM_CCOEFF)

I am checking the max_val and setting a threshold to see if the image has changed. (max_val values are like 3.5+e7)

This is one method but I believe there are better ones out there or somehow ways to tune this method by changing the values.

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Comments

this won't work, like you want it.

instead of "asking around" like you do now, you should do some research on "pick & place" technologies, do some online courses in computer-vision, read books, etc.

all ideas are welcome.

great, but where would you get the (obviously lacking) knowledge to evaluate them ?

we can help you, once you have an actual opencv related problem, unfortunately, right now, it's more like "hot air", no ?

berak gravatar imageberak ( 2018-12-05 08:23:13 -0500 )edit

you'll also quickly find out, that there's no such thing as "any object" ;)

have a walk through the tutorials , and come back with a more refined question, please.

berak gravatar imageberak ( 2018-12-05 08:28:12 -0500 )edit

I didnt post this question to hear your s* remarks, dont have anything productive to add keep yourself out

Ameer Usman gravatar imageAmeer Usman ( 2018-12-05 23:49:34 -0500 )edit

@berak there on your demand

Ameer Usman gravatar imageAmeer Usman ( 2018-12-07 01:46:19 -0500 )edit