How can I create a pixel labelled image for Semantic Segmentation?
I am following the Semantic Segmentation Examples tutorial by MathWorks.
I understand that I can load pixel labeled images
pxDir = fullfile(dataDir,'buildingPixelLabels');
Define the class names.
classNames = ["sky" "grass" "building" "sidewalk"];
Define the label ID for each class name.
pixelLabelID = [1 2 3 4];
and create a pixelLabelDatastore.
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
But, how do I create a custom pixel labelled image where every pixel value represents the categorical label of that pixel?
I would then proceed by writing:
pxDir = fullfile(dataDir,'myCustomPixelLabels');
If I understood correctly, imageDatastore holds the actual image and not the pixel labels for that image.
EDIT:
On my system pxDir points to 'C:Program FilesMATLABR2017atoolboxvisionvisiondatabuildingPixelLabels'. Since I am on Matlab2017a so this example is not included by default, and I cannot compare or view the file to get a better understanding of what I need to do to reproduce this example.
image matlab image-processing machine-learning computer-vision
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
add a comment |
I am following the Semantic Segmentation Examples tutorial by MathWorks.
I understand that I can load pixel labeled images
pxDir = fullfile(dataDir,'buildingPixelLabels');
Define the class names.
classNames = ["sky" "grass" "building" "sidewalk"];
Define the label ID for each class name.
pixelLabelID = [1 2 3 4];
and create a pixelLabelDatastore.
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
But, how do I create a custom pixel labelled image where every pixel value represents the categorical label of that pixel?
I would then proceed by writing:
pxDir = fullfile(dataDir,'myCustomPixelLabels');
If I understood correctly, imageDatastore holds the actual image and not the pixel labels for that image.
EDIT:
On my system pxDir points to 'C:Program FilesMATLABR2017atoolboxvisionvisiondatabuildingPixelLabels'. Since I am on Matlab2017a so this example is not included by default, and I cannot compare or view the file to get a better understanding of what I need to do to reproduce this example.
image matlab image-processing machine-learning computer-vision
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
1
Isn't that what the tutorial does just there after the last line you got from it?
– Ander Biguri
Nov 22 '18 at 10:29
Actually, this is what exactly happening atpxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
– Nouman Riaz Khan
Nov 22 '18 at 13:19
@NoumanRiazKhan butpxDirloads the pixel labeled image, and that is what I'm asking about. How would one go about creatingmyCustomPixelLabels
– Rrz0
Nov 22 '18 at 13:42
@AnderBiguri so imds = imageDatastore(imDir); represents the image data where I need to label the pixels? How would this look like sinceimageDatastoreis usually used to manage a collection of image files.
– Rrz0
Nov 22 '18 at 13:53
@AnderBiguriimageDatastoreholds the actual image and not the pixel lables for that image.
– Rrz0
Nov 22 '18 at 14:31
add a comment |
I am following the Semantic Segmentation Examples tutorial by MathWorks.
I understand that I can load pixel labeled images
pxDir = fullfile(dataDir,'buildingPixelLabels');
Define the class names.
classNames = ["sky" "grass" "building" "sidewalk"];
Define the label ID for each class name.
pixelLabelID = [1 2 3 4];
and create a pixelLabelDatastore.
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
But, how do I create a custom pixel labelled image where every pixel value represents the categorical label of that pixel?
I would then proceed by writing:
pxDir = fullfile(dataDir,'myCustomPixelLabels');
If I understood correctly, imageDatastore holds the actual image and not the pixel labels for that image.
EDIT:
On my system pxDir points to 'C:Program FilesMATLABR2017atoolboxvisionvisiondatabuildingPixelLabels'. Since I am on Matlab2017a so this example is not included by default, and I cannot compare or view the file to get a better understanding of what I need to do to reproduce this example.
image matlab image-processing machine-learning computer-vision
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
I am following the Semantic Segmentation Examples tutorial by MathWorks.
I understand that I can load pixel labeled images
pxDir = fullfile(dataDir,'buildingPixelLabels');
Define the class names.
classNames = ["sky" "grass" "building" "sidewalk"];
Define the label ID for each class name.
pixelLabelID = [1 2 3 4];
and create a pixelLabelDatastore.
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
But, how do I create a custom pixel labelled image where every pixel value represents the categorical label of that pixel?
I would then proceed by writing:
pxDir = fullfile(dataDir,'myCustomPixelLabels');
If I understood correctly, imageDatastore holds the actual image and not the pixel labels for that image.
EDIT:
On my system pxDir points to 'C:Program FilesMATLABR2017atoolboxvisionvisiondatabuildingPixelLabels'. Since I am on Matlab2017a so this example is not included by default, and I cannot compare or view the file to get a better understanding of what I need to do to reproduce this example.
image matlab image-processing machine-learning computer-vision
image matlab image-processing machine-learning computer-vision
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
edited Nov 22 '18 at 19:06
Rrz0
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
asked Nov 21 '18 at 22:10
Rrz0Rrz0
487518
487518
1
Isn't that what the tutorial does just there after the last line you got from it?
– Ander Biguri
Nov 22 '18 at 10:29
Actually, this is what exactly happening atpxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
– Nouman Riaz Khan
Nov 22 '18 at 13:19
@NoumanRiazKhan butpxDirloads the pixel labeled image, and that is what I'm asking about. How would one go about creatingmyCustomPixelLabels
– Rrz0
Nov 22 '18 at 13:42
@AnderBiguri so imds = imageDatastore(imDir); represents the image data where I need to label the pixels? How would this look like sinceimageDatastoreis usually used to manage a collection of image files.
– Rrz0
Nov 22 '18 at 13:53
@AnderBiguriimageDatastoreholds the actual image and not the pixel lables for that image.
– Rrz0
Nov 22 '18 at 14:31
add a comment |
1
Isn't that what the tutorial does just there after the last line you got from it?
– Ander Biguri
Nov 22 '18 at 10:29
Actually, this is what exactly happening atpxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);
– Nouman Riaz Khan
Nov 22 '18 at 13:19
@NoumanRiazKhan butpxDirloads the pixel labeled image, and that is what I'm asking about. How would one go about creatingmyCustomPixelLabels
– Rrz0
Nov 22 '18 at 13:42
@AnderBiguri so imds = imageDatastore(imDir); represents the image data where I need to label the pixels? How would this look like sinceimageDatastoreis usually used to manage a collection of image files.
– Rrz0
Nov 22 '18 at 13:53
@AnderBiguriimageDatastoreholds the actual image and not the pixel lables for that image.
– Rrz0
Nov 22 '18 at 14:31
1
1
Isn't that what the tutorial does just there after the last line you got from it?
– Ander Biguri
Nov 22 '18 at 10:29
Isn't that what the tutorial does just there after the last line you got from it?
– Ander Biguri
Nov 22 '18 at 10:29
Actually, this is what exactly happening at
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);– Nouman Riaz Khan
Nov 22 '18 at 13:19
Actually, this is what exactly happening at
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);– Nouman Riaz Khan
Nov 22 '18 at 13:19
@NoumanRiazKhan but
pxDir loads the pixel labeled image, and that is what I'm asking about. How would one go about creating myCustomPixelLabels– Rrz0
Nov 22 '18 at 13:42
@NoumanRiazKhan but
pxDir loads the pixel labeled image, and that is what I'm asking about. How would one go about creating myCustomPixelLabels– Rrz0
Nov 22 '18 at 13:42
@AnderBiguri so imds = imageDatastore(imDir); represents the image data where I need to label the pixels? How would this look like since
imageDatastore is usually used to manage a collection of image files.– Rrz0
Nov 22 '18 at 13:53
@AnderBiguri so imds = imageDatastore(imDir); represents the image data where I need to label the pixels? How would this look like since
imageDatastore is usually used to manage a collection of image files.– Rrz0
Nov 22 '18 at 13:53
@AnderBiguri
imageDatastore holds the actual image and not the pixel lables for that image.– Rrz0
Nov 22 '18 at 14:31
@AnderBiguri
imageDatastore holds the actual image and not the pixel lables for that image.– Rrz0
Nov 22 '18 at 14:31
add a comment |
1 Answer
1
active
oldest
votes
The answer can be found here.
Matlab 2017a
Go to the APPS tab, and search for Image Labeler, or Training Image Labeler
Click on Add Images to add your training images.
Click on Add ROI Labels to add class names for the regions of interest.
Proceed to select the regions of interest manually from the uploaded images.
Once areas are selected, the data can be exported to workspace as a Ground Truth object.
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53421146%2fhow-can-i-create-a-pixel-labelled-image-for-semantic-segmentation%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The answer can be found here.
Matlab 2017a
Go to the APPS tab, and search for Image Labeler, or Training Image Labeler
Click on Add Images to add your training images.
Click on Add ROI Labels to add class names for the regions of interest.
Proceed to select the regions of interest manually from the uploaded images.
Once areas are selected, the data can be exported to workspace as a Ground Truth object.
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
add a comment |
The answer can be found here.
Matlab 2017a
Go to the APPS tab, and search for Image Labeler, or Training Image Labeler
Click on Add Images to add your training images.
Click on Add ROI Labels to add class names for the regions of interest.
Proceed to select the regions of interest manually from the uploaded images.
Once areas are selected, the data can be exported to workspace as a Ground Truth object.
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
add a comment |
The answer can be found here.
Matlab 2017a
Go to the APPS tab, and search for Image Labeler, or Training Image Labeler
Click on Add Images to add your training images.
Click on Add ROI Labels to add class names for the regions of interest.
Proceed to select the regions of interest manually from the uploaded images.
Once areas are selected, the data can be exported to workspace as a Ground Truth object.
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
The answer can be found here.
Matlab 2017a
Go to the APPS tab, and search for Image Labeler, or Training Image Labeler
Click on Add Images to add your training images.
Click on Add ROI Labels to add class names for the regions of interest.
Proceed to select the regions of interest manually from the uploaded images.
Once areas are selected, the data can be exported to workspace as a Ground Truth object.
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
edited Nov 29 '18 at 7:26
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
answered Nov 22 '18 at 19:42
Rrz0Rrz0
487518
487518
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53421146%2fhow-can-i-create-a-pixel-labelled-image-for-semantic-segmentation%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Isn't that what the tutorial does just there after the last line you got from it?
– Ander Biguri
Nov 22 '18 at 10:29
Actually, this is what exactly happening at
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);– Nouman Riaz Khan
Nov 22 '18 at 13:19
@NoumanRiazKhan but
pxDirloads the pixel labeled image, and that is what I'm asking about. How would one go about creatingmyCustomPixelLabels– Rrz0
Nov 22 '18 at 13:42
@AnderBiguri so imds = imageDatastore(imDir); represents the image data where I need to label the pixels? How would this look like since
imageDatastoreis usually used to manage a collection of image files.– Rrz0
Nov 22 '18 at 13:53
@AnderBiguri
imageDatastoreholds the actual image and not the pixel lables for that image.– Rrz0
Nov 22 '18 at 14:31