application of spatial filter mask

hello i have a image and i like to detect the horizontal lines of well-defined thickness and retrieve their numbers and length. how come with spatial filter mask.

a=[1 1 1 1 1 1 1;0 0 0 0 0 0 0;-1 -1 -1 -1 -1 -1 -1]

b=[-1 -1 -1 -1 -1 -1 -1;0 0 0 0 0 0 0;1 1 1 1 1 1 1]

these masks are based on the directional prewitt filter

please help me

[esser maalaoui]

I do not understand is how the insertion of the image

[Image Analyst]

I don't even understand what you said. Perhaps rephrase it, or get a better English speaker to help you.

Answer 1

[Image Analyst]

Use conv2() or imfilter():

edgeImage = conv2(yourImage, a, 'same');