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Histogram of 3 channels of RGB image in MATLAB | Digital image processing part-9 

Electrical & Computer Engineering Project
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An image histogram is a chart that shows the distribution of intensities in an indexed or grayscale image. In this video, I have shown how to plot a histogram of 3 channels of RGB image. Also how to color them.

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22 июл 2020

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Комментарии : 19   
@asuraindra
@asuraindra 3 года назад
Array indices must be positive integers or logical values. error in histrogram (line 38) ag(n) = ag(n) + 1;
@cinetrospectiva
@cinetrospectiva 3 года назад
Yes, same trouble, what did you do?
@connerjairo7492
@connerjairo7492 2 года назад
i realize Im kind of randomly asking but does anybody know of a good place to stream newly released movies online ?
@dwaynemateo1542
@dwaynemateo1542 2 года назад
@Conner Jairo Flixportal =)
@connerjairo7492
@connerjairo7492 2 года назад
@Dwayne Mateo Thanks, I went there and it seems like they got a lot of movies there =) Appreciate it !!
@dwaynemateo1542
@dwaynemateo1542 2 года назад
@Conner Jairo glad I could help :D
@tinanajafpour7214
@tinanajafpour7214 2 года назад
thanks for the video, i have the same problem with array indices, how can i solve it?
@tanmayatapaswinitripathy285
@tanmayatapaswinitripathy285 3 года назад
How to extract RGB components from the image? Plz share the code
@flavio3d
@flavio3d 3 года назад
great tutorial. But if I have a gray image and wanna convert it to rgb, changing colors by the histogram.. can i do it?
@ece_projects
@ece_projects 3 года назад
I don't know if there is any possible method for that. But i don't think we can convert to rgb using histogram, because the array only contains the number of times a value appeared in the image. But it didn't keep track of the pixels where that value was. we can't place them sequentially. But we can convert gray image to rgb using some function where we give equal values in red,green & blue channels. The result isn't perfect but it's close.
@flavio3d
@flavio3d 3 года назад
@@ece_projects hm ok.. The histogram I wanna use just to select the range if color. For example: 0-50 turn it to blue. 50-130 white.. 130-160 red.... is that possible?
@ece_projects
@ece_projects 3 года назад
What do you wanna color? The graph or the image itself? You can add if else condition to separate the range.
@flavio3d
@flavio3d 3 года назад
@@ece_projects yes.. the color. I did that (if.. else) and it worked. Thx
@ece_projects
@ece_projects 3 года назад
That's great☺
@mazharkhaliq1971
@mazharkhaliq1971 2 года назад
It is showing error at line 37 Error: The index must be positive integer or logical Reply please
@mustafaameenal-tmimi4007
@mustafaameenal-tmimi4007 Год назад
erray indices must be positive integers or logical values. ar(m)=ar(m)+1; Can you help me please
@mustafaameenal-tmimi4007
@mustafaameenal-tmimi4007 Год назад
erray indices must be positive integers or logical values. Error in untitled (line 28) ar(m)=ar(m)+1; Can you help me please
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