Thumbnails are reduced versions of objects, mostly images, that are used to quickly display a small and recognizable representation of the object.

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1answer
37 views

Skip parts of video while converting it to images with ffmpeg

I use this command on ffmpeg to convert a video into images: ffmpeg -i video.mp4 -q:v 1 -r 1 -f image2 frame-03d%.jpg What I want to do is to skip the first x seconds and the last y seconds of the ...
0
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1answer
37 views

Disappearing program thumbnail on taskbar

I have a problem - when I hover mouse on icon of program/folder in taskbar, then the thumbnail shows, and when I hover mouse on the thumbnail, all that program's thumbnail disappears, and current ...
1
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0answers
53 views

Fixing broken thumbnail previews

I'm not 100% this is the right place to post this, so please let me know if so. A while back I had to develop a custom thumbnail preview for a file format for a piece of software I was working on. I ...
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0answers
40 views

Office 2010 documents thumbnails does not show in windows explorer

There is an option in all office 2010 software to save the document with a thumbnail view to identify it over windows explorer. just I check save thumbnail in the save dialogue box. This option work ...
0
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2answers
108 views

Windows 8.1 thumbnails looking destroyed

I found some thumbnails of jpegs and even folders containing them looking kind of destroyed. What is this? A sign that my hard disk is near of its end? I also realized that changing the size of the ...
0
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1answer
237 views

how to fix ffmpeg inaccurate time stamp that corrupts thumbnail generation

So this is intreasting i recieved a video upload today with a time stamp of over a hour when i checked the video its only 8mins long. "C:/server/ffmpeg/bin/ffmpeg.exe" -i ...
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4answers
205 views

How to automatically create Windows thumbnails recursively?

I am using Windows 8.1 with Windows Explorer. The image cache ("thumbs.db") is created when I visit a folder containing video, photo, or other such files. I have a problem with this because I have ...
0
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1answer
44 views

Windows preview multiple thumbnails abnormal behaviour can't select the task

E.g. there are multiple instances of Windows Explorer. Hovering on taskbar icon to show multiple thumbnails becomes unstable, it takes some time to move mouse to see thumbnails. However, certain ...
2
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1answer
75 views

How to create custom thumbnail cover of a video?

I wish to create a custom thumbnail of my movies and other video, just like the one used by TED talks. The example below will illustrate, the video on the right handside is one of the video from TED, ...
2
votes
1answer
119 views

Firefox : How to reset the new tab's tiles

I am using Firefox 34 on Ubuntu 14.04 LTS and when I press open a new tab it shows the most visited sites in a "tiles" format. Unfortunately for some reason the thumbnails of the tiles don't show ...
0
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1answer
197 views

How to set custom thumbnail to a file in Windows Explorer?

Is it possible to set custom (any image) thumbnail to a file (on per-file basis) in Windows File Explorer? Suppose I would like to assign real book cover image to e-book in *.txt format.
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1answer
47 views

No images’ thumbnails on network disk

I bought network disk to build private cloud photo-archive. Unfortunately, there are icons instead the thumbnails in the Windows Explorer. I read some hints how to check these setting via Folder ...
0
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1answer
92 views

Why there are JPEG files with weird file names in folders with videos

Windows 8.1: 64-bit. Since couple of days I see that that in every folder containing a video[s], found a JPEG file with a weird name followed by a file name of a video in the folder. + Is that ...
2
votes
1answer
1k views

Windows explorer thumbnails stopped generating for Canon Raw (.cr2) files only, except intermittently

Updating the question because I know more about the cause of the issue, but still don't know how to solve it. Currently I can see thumbnails for some CR2 files in windows explorer. Maybe only 1-5% of ...
0
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0answers
341 views

Windows Explorer won't show image thumbnails when using Remote Desktop

When I connect to my home Windows 8.1 server via RDP (using another win 8.1 computer) and open Explorer to show some folder containing images, I can't get it to show the actual thumbnails, only this: ...
1
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0answers
243 views

Thumbnail do not appear for office documents

The thumbnails for all Microsoft office (2010 pro) files quit working. They show the type (word, excel, etc) icon but not a thumbnail of the actual document. All other icons (pdf,etc) that show live ...
0
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0answers
154 views

Media player with animated thumbnails on hover (Windows)

Is there a video player (or an addon for one like XBMC for instance) that provides animated thumbnails on hover with the mouse (to get a preview of what's happening in the video)?
2
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1answer
1k views

How to disable auto thumbnails rotation in Windows 8

Windows 8 has a nice feature that it rotates thumbnails of images if they captured vertically. but sometimes it's pesky. How can be this feature disabled? For example (ignore the language):
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1answer
729 views

PDF thumbs not showing in Explorer

I'm running Windows 8.1 Pro 64 bit At some point I stopped getting thumbs for my PDF files in Windows Explorer. I suspected that some thumb cache size may be involved as I have huge collection of ...
1
vote
1answer
205 views

Rapidly viewing thousands of PDF files on Linux [closed]

I have many thousands of PDF files in a directory, and I need to quickly view them one-by-one. I want to be able to open one, look at it, and then quickly (like with a single keypress) move on to the ...
0
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0answers
40 views

When will explorer cache photos?

If I plugged my external USB into my PC, but never accessed any folders in the drive (just maybe down one level, but with no image files, just more folders) would Windows generate a entry to thumbs.db ...
0
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0answers
253 views

Windows 8.1 : alt-Tab icons missing from thumbnails unpredictably

Too often when I hit alt-Tab in Windows 8.1 (Pro, 32bit) I get say 2.5 rows of thumbnails but all without icons in their bottom right corner, which makes it far less clear where to switch to. The ...
1
vote
1answer
740 views

Thunar is not showing any thumbnails

I was looking for the gnome-exe-thumbnailer (or similar) package in Fedora 20 (which surprinsingly wasn't in the repos) but I found tumbler-extras, which I installed and almost immediately ...
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0answers
32 views

Thumbnails for audio files just like in Unity?

I really like Unity audio thumbnails. Is there any way I can preview audio files like this in Windows explorer or Total Commander ?
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3answers
111 views

Show thumbnails in Mac terminal?

Some time ago I've googled nice screenshot of Mac terminal How it can be possible? Special terminal application or special settings of ls?
4
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1answer
230 views

NAS: pre-generating thumbnails for multiple clients

I have a simple setup: Linux server at home with a huge drive; that drive has a photo library (hundreds of folders, hundreds of gigabytes). The drive is shared with multiple Windows and Mac clients ...
0
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1answer
576 views

No thumbnails for video files in Ubuntu, and getting an Apport message box whenever I navigate to a folder with video files in it

I'm using Ubuntu 13.04. Whenever I navigate to a folder with video files in it, none of the videos show a thumbnail: Within a few seconds after merely opening a video-file-containing folder, I get ...
1
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1answer
847 views

ffmpeg: Trying to take thumbnail fps=fps=1/60 works but not fps/fps=1/600

I am following this doc from the ffmpeg site: This will create one thumbnail image every minute, named img001.jpg, img002.jpg, img003.jpg, ... (%03d means that ordinal number of each thumbnail ...
1
vote
2answers
1k views

FFMPEG does not have fps filter. How to fix it?

I am trying to user fps filter to take thumbnails but it gives error: No such filter: 'fps' I checked the list of filters using ffmpeg -filters and fps was not there. How to install it or fix ...
0
votes
1answer
47 views

Sharing the thumbs.db file

in our situation we got network shares containing a lot of PDF's. People want to look at the thumbnails before opening them. However, the thumbs.db file is regenerated for every user looking at the ...
0
votes
1answer
154 views

Disable Windows 7/8 Alt+TAB *preview* (entirely)

When Alt+TAB-ing Windows shows a list of icon previews, and, after a second or so, shows the actual window selected behind this list (a feature called Aero Peek). I just want to see that window ...
0
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0answers
319 views

Image thumbnails not showing and cannot access file properties, how to fix it?

This is a folder full of JPGs: Obviously that does not look right. I have given it plenty of time to load, but still I get no thumbnails. When I right click on a file, and click properties, ...
0
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1answer
418 views

Why does my image look sideways in thumbnail view but correct when I open it?

This is important because I will be submitting it for my visa application (rotated images disqualify you). The image looks rotated sideways in thumbnail view on my computer, but when I double-click ...
-1
votes
1answer
3k views

How to reset thumbnails in windows 8

I changed the album art of an audio file inside a folder using a id3 tag editor. But the folder thumbnail still shows the old album art. I tried to clear thumbnail cache using system cleanup, But i ...
2
votes
2answers
162 views

Video files thumbnails not showing

I have already tried all of the different solutions which I found online, even messing with the Registry, but nothing has worked so far. What could be another possibility to fix this issue? If it ...
0
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4answers
3k views

Remove Windows 7 taskbar thumbnails

Is there any way to get rid of the taskbar thumbnail previews on Windows 7 once and for all?
2
votes
1answer
554 views

ffmpeg thumbnails with exact size main aspect ratio

Hi need to get one thumbnail with resolution 560x420. I'm using this command: ffmpeg -i "file.mp4" -vf "scale=560:-1,pad=max(iw\,ih):420:(ow-iw)/2:(oh-ih)/2" \ -frames:v 1 best.png This command ...
5
votes
2answers
4k views

Can ImageMagick make thumbnails from video?

I'm trying to extract thumbnails from video via ImageMagick. I found some samples from their official site, but it makes GIF, not PNG. I want a solid thumbnail though. Can it create the same output ...
1
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2answers
2k views

Set MP4 thumbnail

With AtomicParsley, you can set the thumbnail that will be displayed when you look at the file in a file explorer. Example commands $ atomicparsley infile.mp4 --artwork infile.png $ atomicparsley ...
2
votes
2answers
233 views

Prevent thumbnail in folder icon, Third party tool allowed

When I disable thumbnail preview, I like my folder icon, but I also lose photo preview. How can I get the folder icon like second one along with having photo preview in thumbnail? I compromised ...
2
votes
0answers
1k views

optimise FFMPEG live stream THUMBNAIL

After testing many possibilities, I have a perfect command line for creating thumbnails from a live stream: ffmpeg -i rtmp://srvIp/h264.stream -r 1 -an -updatefirst 1 -y thumbnail.jpg It refreshes a ...
1
vote
0answers
378 views

Thumbnails in Chrome does not show up

This is my Chrome's homepage. Whenever I start Chrome or open a new tab, this page appears. The page thumbnails just does not show up. Although the page icons and titles are proper. I figured that ...
2
votes
3answers
767 views

How do I prevent LibreOffice saving the file with the thumbnails?

I am using LibreOffice 4.0 on Windows 7 and I have noticed that it saves files (for example Writer) with a preview. (The icon of the file shows what's inside it, it looks like a page). How do I turn ...
2
votes
1answer
885 views

Create thumbnails with 80% height of the input using FFmpeg

I want to take a screenshot/thumbnail from a clip whose size is 1024×780, but I don't want the entire height. I just want the screenshot to take 768 × 80% of the height. This is because ...
4
votes
2answers
2k views

How to sort Windows 7 taskbar thumbnail previews?

Here is a screenshot of the list of windows I have stacked in my Windows 7 taskbar. This is just for Explorer, but similarly I have lots of stacked windows of other processes as well. Currently ...
0
votes
1answer
160 views

In Mac OS X how to define the thumbnail for a specific file type?

I have many files with the file extension ".dat". I wish to assign a thumbnail to these files with this extension because the default one is of very low resolution and is disturbing when working. I ...
1
vote
1answer
221 views

Increase Windows 7 taskbar thumbnail size

Is there a way to increase the size of the mouse-over thumbnail size for Windows 7 task-bar items? Ie, if I have multiple file explorers open and mouse-over them it would be nice to have larger, ...
3
votes
5answers
46k views

Thumbnails for video files are not showing in Windows 7

When I open my video folder, the thumbnails aren't showing. Instead, the default VLC icon was being displayed. Other files and image thumbnails are being displayed properly, only the videos have ...
2
votes
1answer
4k views

No thumbnails for files on the network in Windows 8 explorer

I have a fresh Windows 8 machine which I just unwrapped, but after moving all of my files to a NAS box I have lost all thumbnails in explorer. I browse to the folder and all my JPEGs just have a ...
28
votes
3answers
14k views

Meaningful thumbnails for a Video using FFmpeg

FFmpeg can capture images from videos that can be used as thumbnails to represent the video. Most common ways of doing that are captured in the FFmpeg Wiki. But, I don't want to pick random frames at ...