What the visual difference between DPR: 1.0, DPR: 2.0, DPR: 3.0 for human eyes?
For example :
I have thumbnail of image in fixed size block 250x250px.
And three images:
<img sizes = "250px"
src = "image-250w.jpg"
srcset = "image-250w.jpg 250w,
image-500w.jpg 500w,
image-750w.jpg 750w"
>
So browser pick candidate 250w for device with DPR: 1.0, 500w for device with DPR: 2.0 and 750w for device with DPR: 3.0.
So what the visual difference between these DPR 1,2,3 for human eyes?
I don't have devices(iPhone, etc.) with different DPR to see this. And device emulations can't show me this while I do it on same display.
html image responsive-images srcset devicepixelratio
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
asked Nov 11 '18 at 22:10
niceday
182113
add a comment |
For example :
I have thumbnail of image in fixed size block 250x250px.
And three images:
<img sizes = "250px"
src = "image-250w.jpg"
srcset = "image-250w.jpg 250w,
image-500w.jpg 500w,
image-750w.jpg 750w"
>
So browser pick candidate 250w for device with DPR: 1.0, 500w for device with DPR: 2.0 and 750w for device with DPR: 3.0.
So what the visual difference between these DPR 1,2,3 for human eyes?
I don't have devices(iPhone, etc.) with different DPR to see this. And device emulations can't show me this while I do it on same display.
html image responsive-images srcset devicepixelratio
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
asked Nov 11 '18 at 22:10
niceday
182113
add a comment |
For example :
I have thumbnail of image in fixed size block 250x250px.
And three images:
<img sizes = "250px"
src = "image-250w.jpg"
srcset = "image-250w.jpg 250w,
image-500w.jpg 500w,
image-750w.jpg 750w"
>
So browser pick candidate 250w for device with DPR: 1.0, 500w for device with DPR: 2.0 and 750w for device with DPR: 3.0.
So what the visual difference between these DPR 1,2,3 for human eyes?
I don't have devices(iPhone, etc.) with different DPR to see this. And device emulations can't show me this while I do it on same display.
html image responsive-images srcset devicepixelratio
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
asked Nov 11 '18 at 22:10
niceday
182113
For example :
I have thumbnail of image in fixed size block 250x250px.
And three images:
<img sizes = "250px"
src = "image-250w.jpg"
srcset = "image-250w.jpg 250w,
image-500w.jpg 500w,
image-750w.jpg 750w"
>
So browser pick candidate 250w for device with DPR: 1.0, 500w for device with DPR: 2.0 and 750w for device with DPR: 3.0.
So what the visual difference between these DPR 1,2,3 for human eyes?
I don't have devices(iPhone, etc.) with different DPR to see this. And device emulations can't show me this while I do it on same display.
html image responsive-images srcset devicepixelratio
html image responsive-images srcset devicepixelratio
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
asked Nov 11 '18 at 22:10
niceday
182113
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
asked Nov 11 '18 at 22:10
niceday
182113
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
edited Nov 15 '18 at 1:34
Josh Lee
117k23210241
117k23210241
asked Nov 11 '18 at 22:10
niceday
182113
asked Nov 11 '18 at 22:10
niceday
182113
asked Nov 11 '18 at 22:10
niceday
182113
182113
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I did a quick google & found that to simulate DPR effect on a standard display, you need to set the DPR to 2 and scale the viewport by zooming. A 2x asset will continue to look sharp, while a 1x one will look pixelated.
This way you can visually test the difference between different DPR values.
For further reference, you can see this https://developers.google.com/web/tools/chrome-devtools/device-mode/emulate-mobile-viewports#device_pixel_ratio_dpr
answered Nov 12 '18 at 5:21
AssaultKoder95
736
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%2f53253749%2fwhat-the-visual-difference-between-dpr-1-0-dpr-2-0-dpr-3-0-for-human-eyes%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
I did a quick google & found that to simulate DPR effect on a standard display, you need to set the DPR to 2 and scale the viewport by zooming. A 2x asset will continue to look sharp, while a 1x one will look pixelated.
This way you can visually test the difference between different DPR values.
For further reference, you can see this https://developers.google.com/web/tools/chrome-devtools/device-mode/emulate-mobile-viewports#device_pixel_ratio_dpr
answered Nov 12 '18 at 5:21
AssaultKoder95
736
add a comment |
I did a quick google & found that to simulate DPR effect on a standard display, you need to set the DPR to 2 and scale the viewport by zooming. A 2x asset will continue to look sharp, while a 1x one will look pixelated.
This way you can visually test the difference between different DPR values.
For further reference, you can see this https://developers.google.com/web/tools/chrome-devtools/device-mode/emulate-mobile-viewports#device_pixel_ratio_dpr
answered Nov 12 '18 at 5:21
AssaultKoder95
736
add a comment |
I did a quick google & found that to simulate DPR effect on a standard display, you need to set the DPR to 2 and scale the viewport by zooming. A 2x asset will continue to look sharp, while a 1x one will look pixelated.
This way you can visually test the difference between different DPR values.
For further reference, you can see this https://developers.google.com/web/tools/chrome-devtools/device-mode/emulate-mobile-viewports#device_pixel_ratio_dpr
answered Nov 12 '18 at 5:21
AssaultKoder95
736
I did a quick google & found that to simulate DPR effect on a standard display, you need to set the DPR to 2 and scale the viewport by zooming. A 2x asset will continue to look sharp, while a 1x one will look pixelated.
This way you can visually test the difference between different DPR values.
For further reference, you can see this https://developers.google.com/web/tools/chrome-devtools/device-mode/emulate-mobile-viewports#device_pixel_ratio_dpr
answered Nov 12 '18 at 5:21
AssaultKoder95
736
answered Nov 12 '18 at 5:21
AssaultKoder95
736
answered Nov 12 '18 at 5:21
AssaultKoder95
736
answered Nov 12 '18 at 5:21
AssaultKoder95
736
736
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.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- 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%2f53253749%2fwhat-the-visual-difference-between-dpr-1-0-dpr-2-0-dpr-3-0-for-human-eyes%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
