Valid Coin Mask True Pixels Error Outside or Beyond the Actual Mask Error
imread("testCoinImage3.png");
[testcoinMask,MaskedtestCoin] = segmentCoinFace(testCoinImage);
se = strel("disk", 4, 0);
testcoinMask = imfill(testcoinMask, "holes");
testcoinMask = imerode(testcoinMask, se);
imgFilt = imgaussfilt(MaskedtestCoin, 1, ‘Padding’, ‘circular’, ‘FilterDomain’, ‘frequency’, ‘FilterSize’, 3);
faceEdgeMask = edge(imgFilt, "sobel", 0.09, "both");
faceEdgeMask(~testcoinMask) = false;
seFE = strel("disk",75,0);
fEdgeMask = imfill(faceEdgeMask, "holes");
BW2 = imdilate(fEdgeMask,seFE);
validCoinMask = BW2 & testcoinMask;
se2 = strel(‘disk’,75,0);
validcoinMask = imdilate(validCoinMask, se2);
coinProps = regionprops("table", validCoinMask, ‘Area’, ‘Perimeter’);
areas = table2array(coinProps(:, ‘Area’));
range = [min(areas ) max(areas)];
validCoinMask = bwareafilt(validCoinMask, range);
imshow(validCoinMask)
function [BW,maskedImage] = segmentCoinFace(X)
%segmentImage Segment image using auto-generated code from Image Segmenter app
% [BW,MASKEDIMAGE] = segmentImage(X) segments image X using auto-generated
% code from the Image Segmenter app. The final segmentation is returned in
% BW, and a masked image is returned in MASKEDIMAGE.
% Auto-generated by imageSegmenter app on 08-Jul-2023
%—————————————————-
% Adjust data to span data range.
X = imadjust(X);
% Threshold image with global threshold
BW = imbinarize(im2gray(X));
% Open mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imopen(BW, se);testCoinImage = imread("testCoinImage3.png");
[testcoinMask,MaskedtestCoin] = segmentCoin(testCoinImage);
% Shrink the coin mask.
se = strel(‘disk’, 3, 0);
testcoinMask = imfill(testcoinMask, ‘holes’); % Fill any holes in it.
testcoinMask = imerode(testcoinMask, se); % Shrink by 3 layers of pixels.
% Find edges using original poster’s code.
imgFilt = imgaussfilt(MaskedtestCoin,0.7,…
Padding="circular",FilterDomain="frequency",FilterSize=3);
faceEdgeMask = edge(imgFilt,"sobel",0.1,"both");
% Erase outside the shrunken coin mask to get rid of outer boundary.
faceEdgeMask(~testcoinMask) = false;
imshow(faceEdgeMask);
function [BW,maskedImage] = segmentCoin(X)
%segmentImage Segment image using auto-generated code from Image Segmenter app
% [BW,MASKEDIMAGE] = segmentImage(X) segments image X using auto-generated
% code from the Image Segmenter app. The final segmentation is returned in
% BW, and a masked image is returned in MASKEDIMAGE.
% Auto-generated by imageSegmenter app on 08-Jul-2023
%—————————————————-
% Adjust data to span data range.
X = imadjust(X);
% Threshold image with global threshold
BW = imbinarize(im2gray(X));
% Open mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imopen(BW, se);
% Close mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imclose(BW, se);
% Fill holes
BW = imfill(BW, ‘holes’);
% Invert mask
BW = imcomplement(BW);
% Invert mask
BW = imcomplement(BW);
% Create masked image.
maskedImage = X;
maskedImage(~BW) = 0;
end
% Close mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imclose(BW, se);
% Fill holes
BW = imfill(BW, ‘holes’);
% Invert mask
BW = imcomplement(BW);
% Invert mask
BW = imcomplement(BW);
% Create masked image.
maskedImage = X;
maskedImage(~BW) = 0;
end
in the se variable for structuring element , when I change the value to 4 it shows "Your valid coin mask has one or more true pixels outside valid coins," and when I change the se value to another value later on, it would show that it isn’t covering all true valid coins . Please if you can help, I’ve been stuck on this since the past 3 days and I’m getting quite frustrated grrr. Thanks :)imread("testCoinImage3.png");
[testcoinMask,MaskedtestCoin] = segmentCoinFace(testCoinImage);
se = strel("disk", 4, 0);
testcoinMask = imfill(testcoinMask, "holes");
testcoinMask = imerode(testcoinMask, se);
imgFilt = imgaussfilt(MaskedtestCoin, 1, ‘Padding’, ‘circular’, ‘FilterDomain’, ‘frequency’, ‘FilterSize’, 3);
faceEdgeMask = edge(imgFilt, "sobel", 0.09, "both");
faceEdgeMask(~testcoinMask) = false;
seFE = strel("disk",75,0);
fEdgeMask = imfill(faceEdgeMask, "holes");
BW2 = imdilate(fEdgeMask,seFE);
validCoinMask = BW2 & testcoinMask;
se2 = strel(‘disk’,75,0);
validcoinMask = imdilate(validCoinMask, se2);
coinProps = regionprops("table", validCoinMask, ‘Area’, ‘Perimeter’);
areas = table2array(coinProps(:, ‘Area’));
range = [min(areas ) max(areas)];
validCoinMask = bwareafilt(validCoinMask, range);
imshow(validCoinMask)
function [BW,maskedImage] = segmentCoinFace(X)
%segmentImage Segment image using auto-generated code from Image Segmenter app
% [BW,MASKEDIMAGE] = segmentImage(X) segments image X using auto-generated
% code from the Image Segmenter app. The final segmentation is returned in
% BW, and a masked image is returned in MASKEDIMAGE.
% Auto-generated by imageSegmenter app on 08-Jul-2023
%—————————————————-
% Adjust data to span data range.
X = imadjust(X);
% Threshold image with global threshold
BW = imbinarize(im2gray(X));
% Open mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imopen(BW, se);testCoinImage = imread("testCoinImage3.png");
[testcoinMask,MaskedtestCoin] = segmentCoin(testCoinImage);
% Shrink the coin mask.
se = strel(‘disk’, 3, 0);
testcoinMask = imfill(testcoinMask, ‘holes’); % Fill any holes in it.
testcoinMask = imerode(testcoinMask, se); % Shrink by 3 layers of pixels.
% Find edges using original poster’s code.
imgFilt = imgaussfilt(MaskedtestCoin,0.7,…
Padding="circular",FilterDomain="frequency",FilterSize=3);
faceEdgeMask = edge(imgFilt,"sobel",0.1,"both");
% Erase outside the shrunken coin mask to get rid of outer boundary.
faceEdgeMask(~testcoinMask) = false;
imshow(faceEdgeMask);
function [BW,maskedImage] = segmentCoin(X)
%segmentImage Segment image using auto-generated code from Image Segmenter app
% [BW,MASKEDIMAGE] = segmentImage(X) segments image X using auto-generated
% code from the Image Segmenter app. The final segmentation is returned in
% BW, and a masked image is returned in MASKEDIMAGE.
% Auto-generated by imageSegmenter app on 08-Jul-2023
%—————————————————-
% Adjust data to span data range.
X = imadjust(X);
% Threshold image with global threshold
BW = imbinarize(im2gray(X));
% Open mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imopen(BW, se);
% Close mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imclose(BW, se);
% Fill holes
BW = imfill(BW, ‘holes’);
% Invert mask
BW = imcomplement(BW);
% Invert mask
BW = imcomplement(BW);
% Create masked image.
maskedImage = X;
maskedImage(~BW) = 0;
end
% Close mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imclose(BW, se);
% Fill holes
BW = imfill(BW, ‘holes’);
% Invert mask
BW = imcomplement(BW);
% Invert mask
BW = imcomplement(BW);
% Create masked image.
maskedImage = X;
maskedImage(~BW) = 0;
end
in the se variable for structuring element , when I change the value to 4 it shows "Your valid coin mask has one or more true pixels outside valid coins," and when I change the se value to another value later on, it would show that it isn’t covering all true valid coins . Please if you can help, I’ve been stuck on this since the past 3 days and I’m getting quite frustrated grrr. Thanks 🙂 imread("testCoinImage3.png");
[testcoinMask,MaskedtestCoin] = segmentCoinFace(testCoinImage);
se = strel("disk", 4, 0);
testcoinMask = imfill(testcoinMask, "holes");
testcoinMask = imerode(testcoinMask, se);
imgFilt = imgaussfilt(MaskedtestCoin, 1, ‘Padding’, ‘circular’, ‘FilterDomain’, ‘frequency’, ‘FilterSize’, 3);
faceEdgeMask = edge(imgFilt, "sobel", 0.09, "both");
faceEdgeMask(~testcoinMask) = false;
seFE = strel("disk",75,0);
fEdgeMask = imfill(faceEdgeMask, "holes");
BW2 = imdilate(fEdgeMask,seFE);
validCoinMask = BW2 & testcoinMask;
se2 = strel(‘disk’,75,0);
validcoinMask = imdilate(validCoinMask, se2);
coinProps = regionprops("table", validCoinMask, ‘Area’, ‘Perimeter’);
areas = table2array(coinProps(:, ‘Area’));
range = [min(areas ) max(areas)];
validCoinMask = bwareafilt(validCoinMask, range);
imshow(validCoinMask)
function [BW,maskedImage] = segmentCoinFace(X)
%segmentImage Segment image using auto-generated code from Image Segmenter app
% [BW,MASKEDIMAGE] = segmentImage(X) segments image X using auto-generated
% code from the Image Segmenter app. The final segmentation is returned in
% BW, and a masked image is returned in MASKEDIMAGE.
% Auto-generated by imageSegmenter app on 08-Jul-2023
%—————————————————-
% Adjust data to span data range.
X = imadjust(X);
% Threshold image with global threshold
BW = imbinarize(im2gray(X));
% Open mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imopen(BW, se);testCoinImage = imread("testCoinImage3.png");
[testcoinMask,MaskedtestCoin] = segmentCoin(testCoinImage);
% Shrink the coin mask.
se = strel(‘disk’, 3, 0);
testcoinMask = imfill(testcoinMask, ‘holes’); % Fill any holes in it.
testcoinMask = imerode(testcoinMask, se); % Shrink by 3 layers of pixels.
% Find edges using original poster’s code.
imgFilt = imgaussfilt(MaskedtestCoin,0.7,…
Padding="circular",FilterDomain="frequency",FilterSize=3);
faceEdgeMask = edge(imgFilt,"sobel",0.1,"both");
% Erase outside the shrunken coin mask to get rid of outer boundary.
faceEdgeMask(~testcoinMask) = false;
imshow(faceEdgeMask);
function [BW,maskedImage] = segmentCoin(X)
%segmentImage Segment image using auto-generated code from Image Segmenter app
% [BW,MASKEDIMAGE] = segmentImage(X) segments image X using auto-generated
% code from the Image Segmenter app. The final segmentation is returned in
% BW, and a masked image is returned in MASKEDIMAGE.
% Auto-generated by imageSegmenter app on 08-Jul-2023
%—————————————————-
% Adjust data to span data range.
X = imadjust(X);
% Threshold image with global threshold
BW = imbinarize(im2gray(X));
% Open mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imopen(BW, se);
% Close mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imclose(BW, se);
% Fill holes
BW = imfill(BW, ‘holes’);
% Invert mask
BW = imcomplement(BW);
% Invert mask
BW = imcomplement(BW);
% Create masked image.
maskedImage = X;
maskedImage(~BW) = 0;
end
% Close mask with default
radius = 2;
decomposition = 0;
se = strel(‘disk’, radius, decomposition);
BW = imclose(BW, se);
% Fill holes
BW = imfill(BW, ‘holes’);
% Invert mask
BW = imcomplement(BW);
% Invert mask
BW = imcomplement(BW);
% Create masked image.
maskedImage = X;
maskedImage(~BW) = 0;
end
in the se variable for structuring element , when I change the value to 4 it shows "Your valid coin mask has one or more true pixels outside valid coins," and when I change the se value to another value later on, it would show that it isn’t covering all true valid coins . Please if you can help, I’ve been stuck on this since the past 3 days and I’m getting quite frustrated grrr. Thanks 🙂 image segmentation MATLAB Answers — New Questions
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