processing image detect color and shape object

hi guy

how can i detect color object in image (red green blue) in hsv space and write color name in object. thankyou

Answer 1

[Image Analyst]

See demos in my File Exchange.

[ngo tung]

What function can I use to cut an object out of the image after defining the bounding box? Thankyou very much.

[Image Analyst]

imcrop():

croppedImage = imcrop(rgbImage, [xLeftColumn, yTopRow, widthInColumns, heightInRows]);

[ngo tung]

thank sir.

Can you help me answer the last question?

what function can i filter out pixels color that have values ​​within my selection, same as the inRange() function in Opencv.

Thanks for the help!!

[ngo tung]

@Image Analyst

Can you answer this question.

[Image Analyst]

Get a mask with true or false that says where your pixels are or are not. Then you can mask them out (blacken them):

% Mask the image using bsxfun() function to multiply the mask by each channel individually.  Works for gray scale as well as RGB Color images.
maskedRgbImage = bsxfun(@times, rgbImage, cast(mask, 'like', rgbImage));

Also, try the Color Thresholder app on the Apps tab of the tool ribbon.

Also, see my File Exchange.