How to find the white pixels between two points in an edge image using matlab?
I have edges from an image, In edge image I have two points , I want to count the no of white pixels between these two points . Intent is to count the white pixels and if it greater than certain threshold than call this edge as potential edge to form square.
Image Link
In Image I have 2 points X1, Y1 and X2, Y2, and I want to count the no pixels. These X1, Y1 and X2,Y2 points can have anywhere else like leftmost or upper most etc.
image-processing computer-vision
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
add a comment |
I have edges from an image, In edge image I have two points , I want to count the no of white pixels between these two points . Intent is to count the white pixels and if it greater than certain threshold than call this edge as potential edge to form square.
Image Link
In Image I have 2 points X1, Y1 and X2, Y2, and I want to count the no pixels. These X1, Y1 and X2,Y2 points can have anywhere else like leftmost or upper most etc.
image-processing computer-vision
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
How would you like to count white pixels, in a row, in a column or white pixels in a connected component? please explain. Well, you can useregionprops()to find the FilledArea of connected component in matlab andcontourArea()function in openCV
– user8190410
Nov 14 '18 at 15:49
Not in connected components. I want to find white pixels between two points as in example. These two points can be anywhere in the image . Can along row or columns. Only given input is two points.
– Abhay Srivastava
Nov 15 '18 at 16:10
then loop over specific row/column and count pixels i.e.if (img[row,col] == 255) count = count + 1
– user8190410
Nov 15 '18 at 16:24
add a comment |
I have edges from an image, In edge image I have two points , I want to count the no of white pixels between these two points . Intent is to count the white pixels and if it greater than certain threshold than call this edge as potential edge to form square.
Image Link
In Image I have 2 points X1, Y1 and X2, Y2, and I want to count the no pixels. These X1, Y1 and X2,Y2 points can have anywhere else like leftmost or upper most etc.
image-processing computer-vision
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
I have edges from an image, In edge image I have two points , I want to count the no of white pixels between these two points . Intent is to count the white pixels and if it greater than certain threshold than call this edge as potential edge to form square.
Image Link
In Image I have 2 points X1, Y1 and X2, Y2, and I want to count the no pixels. These X1, Y1 and X2,Y2 points can have anywhere else like leftmost or upper most etc.
image-processing computer-vision
image-processing computer-vision
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
edited Nov 13 '18 at 17:44
Abhay Srivastava
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
asked Nov 13 '18 at 17:37
Abhay SrivastavaAbhay Srivastava
11
11
How would you like to count white pixels, in a row, in a column or white pixels in a connected component? please explain. Well, you can useregionprops()to find the FilledArea of connected component in matlab andcontourArea()function in openCV
– user8190410
Nov 14 '18 at 15:49
Not in connected components. I want to find white pixels between two points as in example. These two points can be anywhere in the image . Can along row or columns. Only given input is two points.
– Abhay Srivastava
Nov 15 '18 at 16:10
then loop over specific row/column and count pixels i.e.if (img[row,col] == 255) count = count + 1
– user8190410
Nov 15 '18 at 16:24
add a comment |
How would you like to count white pixels, in a row, in a column or white pixels in a connected component? please explain. Well, you can useregionprops()to find the FilledArea of connected component in matlab andcontourArea()function in openCV
– user8190410
Nov 14 '18 at 15:49
Not in connected components. I want to find white pixels between two points as in example. These two points can be anywhere in the image . Can along row or columns. Only given input is two points.
– Abhay Srivastava
Nov 15 '18 at 16:10
then loop over specific row/column and count pixels i.e.if (img[row,col] == 255) count = count + 1
– user8190410
Nov 15 '18 at 16:24
How would you like to count white pixels, in a row, in a column or white pixels in a connected component? please explain. Well, you can use
regionprops() to find the FilledArea of connected component in matlab and contourArea() function in openCV– user8190410
Nov 14 '18 at 15:49
How would you like to count white pixels, in a row, in a column or white pixels in a connected component? please explain. Well, you can use
regionprops() to find the FilledArea of connected component in matlab and contourArea() function in openCV– user8190410
Nov 14 '18 at 15:49
Not in connected components. I want to find white pixels between two points as in example. These two points can be anywhere in the image . Can along row or columns. Only given input is two points.
– Abhay Srivastava
Nov 15 '18 at 16:10
Not in connected components. I want to find white pixels between two points as in example. These two points can be anywhere in the image . Can along row or columns. Only given input is two points.
– Abhay Srivastava
Nov 15 '18 at 16:10
then loop over specific row/column and count pixels i.e.
if (img[row,col] == 255) count = count + 1– user8190410
Nov 15 '18 at 16:24
then loop over specific row/column and count pixels i.e.
if (img[row,col] == 255) count = count + 1– user8190410
Nov 15 '18 at 16:24
add a comment |
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How would you like to count white pixels, in a row, in a column or white pixels in a connected component? please explain. Well, you can use
regionprops()to find the FilledArea of connected component in matlab andcontourArea()function in openCV– user8190410
Nov 14 '18 at 15:49
Not in connected components. I want to find white pixels between two points as in example. These two points can be anywhere in the image . Can along row or columns. Only given input is two points.
– Abhay Srivastava
Nov 15 '18 at 16:10
then loop over specific row/column and count pixels i.e.
if (img[row,col] == 255) count = count + 1– user8190410
Nov 15 '18 at 16:24