How to save grayscale image in Pytorch?How to merge two dictionaries in a single expression?How do I check if a list is empty?How do I check whether a file exists without exceptions?How can I safely create a nested directory?Lazy load of images in ListViewConvert an image to grayscale in HTML/CSSHow do I sort a dictionary by value?How do I auto-resize an image to fit a 'div' container?How do I list all files of a directory?How to vertically align an image inside a div
What is the reason behind water not falling from a bucket at the top of loop?
Deflecting lasers with lightsabers
Why adjustbox needs a tweak of raise=-0.3ex with enumitem?
How to avoid a lengthy conversation with someone from the neighborhood I don't share interests with
Different answers of calculations in LuaLaTeX on local computer, lua compiler and on overleaf
(7 of 11: Fillomino) What is Pyramid Cult's Favorite Shape?
Unlocked Package Dependencies
In-Cabinet (sink base) electrical box - Metal or Plastic?
Any information about the photo with Army Uniforms
Is the EU really banning "toxic propellants" in 2020? How is that going to work?
Is the first page of Novel really that important?
Why interlaced CRT scanning wasn't done back and forth?
Does a bard know when a character uses their Bardic Inspiration?
Skipping same old introductions
What is Modern Vipassana?
What license to choose for my PhD thesis?
What is it exactly about flying a Flyboard across the English channel that made Zapata's thighs burn?
How to transform a function from f[#1] to f[x]
Can you shove a friendly creature?
Can't split a feature as invalid geometry - but "Check Validity" says its valid
Has J.J.Jameson ever found out that Peter Parker is Spider-Man?
Where can I see modifications made to the PATH environment variable by the Go installer
Is an "are" omitted in this sentence
How do people drown while wearing a life jacket?
How to save grayscale image in Pytorch?
How to merge two dictionaries in a single expression?How do I check if a list is empty?How do I check whether a file exists without exceptions?How can I safely create a nested directory?Lazy load of images in ListViewConvert an image to grayscale in HTML/CSSHow do I sort a dictionary by value?How do I auto-resize an image to fit a 'div' container?How do I list all files of a directory?How to vertically align an image inside a div
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I want to save grayscale image in Pytorch, each image has four gray values, 0, 60, 120 and 180. I try the following way to save images, but the saved image is not I expected.
for i, (inputs) in enumerate(test_generator):
pred = modelPl(inputs.float()).detach()
fig,ax = plt.subplots(1,1,figsize = (5,5))
ax.imshow(pred[0,:,:], cmap = "gray")
print(pred.shape)
torchvision.utils.save_image(pred, saveTestPath + 'img_0.png'.format(i))
Output:torch.Size([400, 400])
Expected image:
However, the saved picture is not correct as follows:
python image computer-vision pytorch
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
add a comment |
I want to save grayscale image in Pytorch, each image has four gray values, 0, 60, 120 and 180. I try the following way to save images, but the saved image is not I expected.
for i, (inputs) in enumerate(test_generator):
pred = modelPl(inputs.float()).detach()
fig,ax = plt.subplots(1,1,figsize = (5,5))
ax.imshow(pred[0,:,:], cmap = "gray")
print(pred.shape)
torchvision.utils.save_image(pred, saveTestPath + 'img_0.png'.format(i))
Output:torch.Size([400, 400])
Expected image:
However, the saved picture is not correct as follows:
python image computer-vision pytorch
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
add a comment |
I want to save grayscale image in Pytorch, each image has four gray values, 0, 60, 120 and 180. I try the following way to save images, but the saved image is not I expected.
for i, (inputs) in enumerate(test_generator):
pred = modelPl(inputs.float()).detach()
fig,ax = plt.subplots(1,1,figsize = (5,5))
ax.imshow(pred[0,:,:], cmap = "gray")
print(pred.shape)
torchvision.utils.save_image(pred, saveTestPath + 'img_0.png'.format(i))
Output:torch.Size([400, 400])
Expected image:
However, the saved picture is not correct as follows:
python image computer-vision pytorch
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
I want to save grayscale image in Pytorch, each image has four gray values, 0, 60, 120 and 180. I try the following way to save images, but the saved image is not I expected.
for i, (inputs) in enumerate(test_generator):
pred = modelPl(inputs.float()).detach()
fig,ax = plt.subplots(1,1,figsize = (5,5))
ax.imshow(pred[0,:,:], cmap = "gray")
print(pred.shape)
torchvision.utils.save_image(pred, saveTestPath + 'img_0.png'.format(i))
Output:torch.Size([400, 400])
Expected image:
However, the saved picture is not correct as follows:
python image computer-vision pytorch
python image computer-vision pytorch
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
edited Mar 27 at 1:31
rosefun
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
asked Mar 27 at 1:26
rosefunrosefun
4752 silver badges13 bronze badges
4752 silver badges13 bronze badges
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
It might be that torchvision.utils.save_image requires values to be in range 0 to 1. Your images have values which are greater than 1 and hence the problem.
You can check this by dividing the tensor by 255 (or some appropriate number). You can also try to set normalize=True and see if it can automatically normalize the data for you.
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
1
Thanks, I solve the problem by dividing the tensor by255.
– rosefun
Mar 27 at 1:41
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%2f55368465%2fhow-to-save-grayscale-image-in-pytorch%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
It might be that torchvision.utils.save_image requires values to be in range 0 to 1. Your images have values which are greater than 1 and hence the problem.
You can check this by dividing the tensor by 255 (or some appropriate number). You can also try to set normalize=True and see if it can automatically normalize the data for you.
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
1
Thanks, I solve the problem by dividing the tensor by255.
– rosefun
Mar 27 at 1:41
add a comment |
It might be that torchvision.utils.save_image requires values to be in range 0 to 1. Your images have values which are greater than 1 and hence the problem.
You can check this by dividing the tensor by 255 (or some appropriate number). You can also try to set normalize=True and see if it can automatically normalize the data for you.
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
1
Thanks, I solve the problem by dividing the tensor by255.
– rosefun
Mar 27 at 1:41
add a comment |
It might be that torchvision.utils.save_image requires values to be in range 0 to 1. Your images have values which are greater than 1 and hence the problem.
You can check this by dividing the tensor by 255 (or some appropriate number). You can also try to set normalize=True and see if it can automatically normalize the data for you.
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
It might be that torchvision.utils.save_image requires values to be in range 0 to 1. Your images have values which are greater than 1 and hence the problem.
You can check this by dividing the tensor by 255 (or some appropriate number). You can also try to set normalize=True and see if it can automatically normalize the data for you.
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
answered Mar 27 at 1:37
Umang GuptaUmang Gupta
4,4721 gold badge21 silver badges42 bronze badges
4,4721 gold badge21 silver badges42 bronze badges
1
Thanks, I solve the problem by dividing the tensor by255.
– rosefun
Mar 27 at 1:41
add a comment |
1
Thanks, I solve the problem by dividing the tensor by255.
– rosefun
Mar 27 at 1:41
1
1
Thanks, I solve the problem by dividing the tensor by
255.– rosefun
Mar 27 at 1:41
Thanks, I solve the problem by dividing the tensor by
255.– rosefun
Mar 27 at 1:41
add a comment |
Got a question that you can’t ask on public Stack Overflow? Learn more about sharing private information with Stack Overflow for Teams.
Got a question that you can’t ask on public Stack Overflow? Learn more about sharing private information with Stack Overflow for Teams.
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%2f55368465%2fhow-to-save-grayscale-image-in-pytorch%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
