Thumbnails are reduced-size versions of pictures, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words.
Questions tagged [thumbnails]
3149 questions
622
votes
23 answers
How do I resize an image using PIL and maintain its aspect ratio?
Is there an obvious way to do this that I'm missing? I'm just trying to make thumbnails.

saturdayplace
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337
votes
26 answers
Get img thumbnails from Vimeo?
I want to get a thumbnail image for videos from Vimeo.
When getting images from Youtube I just do like this:
http://img.youtube.com/vi/HwP5NG-3e8I/2.jpg
Any idea how to do for Vimeo?
Here is same question, without any answer.

Johan
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109
votes
6 answers
Create thumbnail image
I want to display thumbnail image in a gridview from file location. How to generate that of .jpeg file?
I am using C# language with asp.net.

Red Swan
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96
votes
1 answer
What is the difference for sample/resample/scale/resize/adaptive-resize/thumbnail operators in ImageMagick convert?
I found multiple ways to change the resolution of an image using convert:
-sample
-resample
-scale
-resize
-adaptive-resize
-thumbnail
What's the difference of those?
If I need to make various size large picture thumbnail with fixed aspect ratio…

est
- 11,429
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96
votes
12 answers
Facebook Post Link Image
When someone posts a link on facebook, a script usually scans that link for any images, and displays a quick thumbnail next to the post. For certain URLs though (including mine), FB doesn't seem to pick up anything, despite their being a number of…
RudeBoyRock
84
votes
4 answers
Getting image dimensions using the JavaScript File API
I require to generate a thumbnail of an image in my web application. I make use of the HTML5 File API to generate the thumbnail.
I made use of the examples from Read files in JavaScript to generate the thumbnails.
I am successfully able to generate…

Abishek
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70
votes
7 answers
Create thumbnail from video file via file input
I am attempting to create a thumbnail preview from a video file (mp4,3gp) from a form input type='file'. Many have said that this can be done server side only. I find this hard to believe since I just recently came across this Fiddle using HTML5…

ryan
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63
votes
12 answers
Getting a thumbnail from a video url or data in iOS
I am trying to acquire a thumbnail (of the first frame) from a video taken from iphone 3GS camera so I can display it. How to do this?

Daniel
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57
votes
7 answers
PIL: Thumbnail and end up with a square image
Calling
image = Image.open(data)
image.thumbnail((36,36), Image.NEAREST)
will maintain the aspect ratio. But I need to end up displaying the image like this:
Can I have a letterbox…


Paul Tarjan
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53
votes
12 answers
How to get thumbnail for video in my /sdcard/Android/data/mypackage/files folder?
Query to MediaStore.Video.Media.EXTERNAL_CONTENT_URI returns only video in /sdcard/DCIM/100MEDIA
But I want to get thumbnails for video in my /sdcard/Android/data/mypackage/files folder. Is it possible ?
Here is part of my code:
…

Vladimir Berezkin
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51
votes
3 answers
Generate preview image from Video file?
Is there a way in PHP given a video file (.mov, .mp4) to generate a thumbnail image preview?

JD Isaacks
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50
votes
5 answers
How do I generate circular thumbnails with PIL?
How do I generate circular image thumbnails using PIL?
The space outside the circle should be transparent.
Snippets would be highly appreciated, thank you in advance.

ohnoes
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46
votes
5 answers
Displaying thumbnail icons 128x128 pixels or larger in a grid in ListView
Original Question (see Update below)
I have a WinForms program that needs a decent scrollable icon control with large icons (128x128 or larger thumbnails, really) that can be clicked to hilight or double clicked to perform some action. Preferably…

Jared Updike
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42
votes
8 answers
imagecreatefrompng() Makes a black background instead of transparent?
I make thumbnails using PHP and GD library but my code turn png transparency into a solid black color, Is there a solution to improve my code?
this is my php thumbnail maker code:
function cropImage($nw, $nh, $source, $stype, $dest) {
$size =…

Emily
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40
votes
9 answers
Creating a thumbnail from an uploaded image
I'm wanting to create a thumbnail from a user uploaded image so the image doesn't look squashed. But also would like a copy of the original image.. So I would like the original image to send the original image to my server and also create a thumb…

dave
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