How to increase contrast of a black and white image?
I receive scanned documents that I need to increase contrast to print. How to do it?
image-processing
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
add a comment |
I receive scanned documents that I need to increase contrast to print. How to do it?
image-processing
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
add a comment |
I receive scanned documents that I need to increase contrast to print. How to do it?
image-processing
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
I receive scanned documents that I need to increase contrast to print. How to do it?
image-processing
image-processing
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
asked Aug 19 '17 at 16:59
Vitor AbellaVitor Abella
2,707102763
2,707102763
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
You can use
gimpto increase the contrast. Select the dropdown menu Colors and one of the methods, for example Brightness/Contrast or Curves. This works for single or few pictures/pages.
The package
imagemagickprovides batch tools (if there are many pictures/pages). There are several good tutorials, for example
www.imagemagick.org/Usage/
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
add a comment |
Image-magic is a good software for editing batch pictures and You can also use ** GIMP** it is free and it work almost like adobe photoshop.
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
add a comment |
With Shotwell viewer you can easily increase contrast on images.
Click on the Adjust button on the bottom of the program
and decrease the Highlights level.
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
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%2faskubuntu.com%2fquestions%2f947858%2fhow-to-increase-contrast-of-a-black-and-white-image%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use
gimpto increase the contrast. Select the dropdown menu Colors and one of the methods, for example Brightness/Contrast or Curves. This works for single or few pictures/pages.
The package
imagemagickprovides batch tools (if there are many pictures/pages). There are several good tutorials, for example
www.imagemagick.org/Usage/
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
add a comment |
You can use
gimpto increase the contrast. Select the dropdown menu Colors and one of the methods, for example Brightness/Contrast or Curves. This works for single or few pictures/pages.
The package
imagemagickprovides batch tools (if there are many pictures/pages). There are several good tutorials, for example
www.imagemagick.org/Usage/
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
add a comment |
You can use
gimpto increase the contrast. Select the dropdown menu Colors and one of the methods, for example Brightness/Contrast or Curves. This works for single or few pictures/pages.
The package
imagemagickprovides batch tools (if there are many pictures/pages). There are several good tutorials, for example
www.imagemagick.org/Usage/
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
You can use
gimpto increase the contrast. Select the dropdown menu Colors and one of the methods, for example Brightness/Contrast or Curves. This works for single or few pictures/pages.
The package
imagemagickprovides batch tools (if there are many pictures/pages). There are several good tutorials, for example
www.imagemagick.org/Usage/
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
answered Aug 19 '17 at 17:15
sudodussudodus
23.3k32874
23.3k32874
add a comment |
add a comment |
Image-magic is a good software for editing batch pictures and You can also use ** GIMP** it is free and it work almost like adobe photoshop.
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
add a comment |
Image-magic is a good software for editing batch pictures and You can also use ** GIMP** it is free and it work almost like adobe photoshop.
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
add a comment |
Image-magic is a good software for editing batch pictures and You can also use ** GIMP** it is free and it work almost like adobe photoshop.
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
Image-magic is a good software for editing batch pictures and You can also use ** GIMP** it is free and it work almost like adobe photoshop.
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
answered Aug 19 '17 at 17:05
hanzeh_pmhanzeh_pm
111
111
add a comment |
add a comment |
With Shotwell viewer you can easily increase contrast on images.
Click on the Adjust button on the bottom of the program
and decrease the Highlights level.
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
add a comment |
With Shotwell viewer you can easily increase contrast on images.
Click on the Adjust button on the bottom of the program
and decrease the Highlights level.
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
add a comment |
With Shotwell viewer you can easily increase contrast on images.
Click on the Adjust button on the bottom of the program
and decrease the Highlights level.
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
With Shotwell viewer you can easily increase contrast on images.
Click on the Adjust button on the bottom of the program
and decrease the Highlights level.
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
answered Dec 10 '18 at 15:00
george manogeorge mano
14538
14538
add a comment |
add a comment |
Thanks for contributing an answer to Ask Ubuntu!
- 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%2faskubuntu.com%2fquestions%2f947858%2fhow-to-increase-contrast-of-a-black-and-white-image%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
