image processing - ImageProcessing MatLab -

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i have video of welding procedure, , every frame need take contours of welded area, , detect edges. unfortunately, images got aren't best quality, tried put several filters , make image enhacement , didn't work take sharp edges.

image below:

i managed make following code, results terrible.

clc  clear  vid = videoreader('home/simulation/v6_008.avi');  h=ones(3,3)/9;  i=1 : mov.numberofframes  thisframe = read(vid,i);  g = image(thisframe);  lsave = sprintf('image.jpg');  saveas(g, lsave, 'jpg')  = imread(lsave);  a1 = imcrop(a,[150 450 650 300]);  a2= imsharpen(a1,'radius',50,'amount',500);  b = rgb2gray(a2);  c=imadjust(b,[0.6 0.8],[]);  c1= imfilter(c,h);  c2=adapthisteq(c1,'cliplimit',0.01,'distribution','exponential');  d = edge(c1,'canny',0.1);  e=bwareaopen(d,50);  imshow(e) end

these filters , image enhacements helped little bit, still not enought measurements.

so have 2 questions:

1) know other tool can use make edge detection cleaner? want outline specified region can see.

2) need make edge detection every frame, , save frames, , save video after edge detection. don't know how it. you?

thanks guys, apology if confusing. i'm afraid if don't finish gonna troubled.. :(. again, apreciate help!

this edges ideally have after edge detection:

enter image description here


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