118 - Object detection by template matching

This video explains the process of detecting objects in an image based on a template reference image. This process is not scale invariant, the template image must be of the same scale as the objects of interest.

[priyankarsinha]

OMG, I have been searching about the explanation of all the modes that is used in template matching, and youtube didn't show me this!! thank you kind Sir, you made my day.

[Djauvel]

This approach draws a TON of bounding boxes around each object, as the res image does not have a single point per object within the threshold. Use non_max_suppression from imutils to find only the best matching bounding box before you draw them. Otherwise, great video!

[MegaLenrique]

import "cv2" could not be resolved, all the imports show that problem, why?.... muchas gracias por compartir

[nThanksForAllTheFish]

In the F16 example - coul you detect all the planes - ie handle size and rotation variation?

[aryashah]

Great video! I have a question, what would be an optimal approach when I try to match my target object in an environment with lots of background object and having good amount of perfectly white as well as black in the background as well? I tried thresholding for matching but it cannot just lead to complete extracion of only target object in either value after binary conversion, i.e. many background object in the same pixel intensity exists. Thanks

[Adityas-mcih]

Hello Sreeni Sir,
Absolutely love your tutorials. Please please continue this series. IT'LL BE GREAT IF YOU could also do real time image processing. Just one video where one can do a video analysis of a microscopic video. Please go for it sir. Thanks a lot. Love your work.

[lucasschneider]

how can get the rotation os the detection?

[riddhiraychaudhuri]

Hi Sreeni. Thanks for the great video. Just a query based on this, what is best way to modify this template matching technique to also detect the cases where the object of interest is not present at all?

[prakashmesta]

Thanks.. this video is really helping.... what method do we use if the template is not in the same scale as the object in the input image?

[domagojgotic]

Excellent tutorial and a really good explanation.

[sayalisalunkhe]

where do I get the image and template used in this code?

[sbsyr]

Excellent explanation...Thank alot Sir, 🙏

[revitalizedclassics]

Hello, thank you for your video!
Using the example in the video, could template images, like the 'f16_template.jpg' image, be pasted into the bigger image whenever there is a good match? Thanks

[FanFanlanguageworld]

Hi, is there a way to combine DL and template matching to do an object detection?

[ahmadwiqar]

Thank you for such a usefull video. But sir i got just black image ? can kindly guide me

[williamusuga]

Good night.
Good night. It's possible to use the template matching to find objects in a grayscale image?. my original image is in gray scale

[quadriquadri]

how can i do this in java without use of opencv

[alejandrosola]

Thank you sir! You helped me with a project of my own! :)

[nijain]

Can we draw contours using template matching technique ???

[gowithgaurav]

Hello Sir. Really nice tutorial. I have a small query regarding template matching. Is it possible to match same images of different magnification? for ex. how to match 200x to 450x image.Your input will be really hepful. TIA