82
votes
Accepted
What is the difference between screen with resolution 2560*1440 with zoom - 200% and screen with resolution 1280*720?
It looks like you are referring to "zoom 200%" in some OS settings.
When you use 1280*720 everything is rendered in this resolution and then scaled up as a bitmap (by your monitor). The final image ...
57
votes
Accepted
What is the location of lock screen images on Windows 10?
If you are not finding the images in the typical locations, you likely have Windows Spotlight turned on. Spotlight offers random images on the lock screen, as well as other features.
These Windows ...
35
votes
What is the location of lock screen images on Windows 10?
All above did not worked for me at all.
Lock screen was still that annoying-cave-entrance.
No matter if I overwrite that Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\...
26
votes
Accepted
Split image to multiple pages
If you prefer to get it done online, I may suggest this site - http://rasterbator.net/.
Click in Create Poster and upload your image. Select the page size options, Effect options (I used to select ...
26
votes
Can I create an image with a specific size in bytes?
Most implementations of image formats ignore trailing zeros. Therefore, it is relatively straightforward to pad a file to a desired size. (5 megabytes is 10240 blocks.)
#! /usr/bin/env bash
...
23
votes
How to copy image to clipboard, to paste to another application?
scrot + xclip
You can use scrot with xclip to take a screenshot and copy it to clipboard.
scrot '/tmp/%F_%T_$wx$h.png' -e 'xclip -selection clipboard -target image/png -i $f'
It will capture whole ...
20
votes
Finding Image resolution in PDF file?
slhck's answer and scruss' comment deserve to be updated : pdfimages now (at least since version 0.26.5) explicitely lists x-ppi and y-ppi. Here is an sample output :
$ pdfimages -list example.pdf
...
Community wiki
18
votes
How to pick a color from an image
If the image can be rendered in a browser, most of them have built-in color pickers / eyedroppers:
Chrome - DevTools (F12) -> Elements -> Styles -> click any color preview box
FireFox - Same as ...
16
votes
Split image to multiple pages
ImageMagick does this pretty well, by easily splitting an image into equal-sized tiles.
First make sure your image is sized properly so that, after it is split into equal sized tiles, each tile is ...
16
votes
Fatal loss of data across OS borders
Never cut/paste between media [even on the same OS].
It leaves no undo, no way back except file-scavenging tools or a backup.
As you've discovered to your unfortunate cost, Undo makes the new files ...
14
votes
Paste a screenshot in windows explorer
I just found https://github.com/EslaMx7/PasteIntoFiles
This "PasteIntoFiles" freeware on GitHub adds a shortcut to the Windows Explorer context-menu that opens a tiny tool with the current folder pre-...
13
votes
Accepted
Merge two images with transparency in imagemagick
Imagemagick is a complex tool with a lot of options.
In the example you posted it seems that to the first image is superimposed (overlapped) a copy flipped with some transparency level. All actions ...
13
votes
Accepted
Paste with transparent background in Paint
My Windows 10 installation is running Version 1703 (OS Build 15063.483).
It has the ability to set transparency on a text box or a selection, based on the second color chosen.
12
votes
Making sound spectrum images from command line
You can use ffmpeg to create spectrogram
ffmpeg -i inputfile.mp3 -lavfi showspectrumpic=s=800x400:mode=separate spectrogram.png
Filter documentation: https://ffmpeg.org/ffmpeg-filters.html#...
12
votes
How to extract lossless image from video with FFmpeg?
Try
ffmpeg -i input.mp4 -r 1 -q:v 1 -qmin 1 -qmax 1 output_%01d.jpg
If not good enough, use
ffmpeg -i input.mp4 -r 1 output_%01d.bmp
and use another JPEG encoder.
11
votes
Accepted
FFMPEG: Overlaying scaled video over image
Use
ffmpeg -loop 1 -i background.jpg \
-vf "movie=overlay.mp4,scale=128:96[inner];[in][inner]overlay=70:70:shortest=1[out]" \
-y output.mp4
The image needs to be looped, but that will ...
11
votes
Accepted
How to open Apple iOS .AAE file?
Is a way to open and access the cropped version of the image or other information in the .AAE file?
.aae files are only used by iOS and OS X 10.10+.
They can be viewed by a text editor to see what ...
10
votes
How can I resize (not compress) multiple images in a MS Word document?
Set the way you use pictures from "In Line With Text" to "Top and Bottom". Resize your 1st picture as desired In Format Pictures. Then select pictures one at a time and press F4. Not exactly instant ...
9
votes
Is there an image viewer that takes images on STDIN?
You can use feh, it's pretty fast.
cat image.png | feh --scale-down -
feh is a lightweight image viewer which is in the default repositories of many Linux distributions. It is especially aimed at ...
9
votes
Convert JPG to Video for playback in VLC
just Open the VLC Player > Media>Convert/save or press ctrl+R >add your images > drop down option to play . Done ! :)
9
votes
Accepted
How do I convert a TTF into individual PNG character images?
You can use Python with FontForge, it has a Python 2.7 interpreter.
On Windows: after installing FontForge, locate the "bin" in installation path and add it to the Windows system path, in my case ...
8
votes
Easiest way to make multi-page images in Microsoft Word?
If you need to just print this document, you can do this by pasting into Excel. Lines will appear that will show you where the split occurs. I use this when people send me long images.
8
votes
How to save all images embedded in email in Thunderbird?
Another option under Debian or Ubuntu is
Save the mail to disk as email.eml.
Open up a terminal and navigate to the directory where you saved the mail to
sudo apt install mpack
munpack email.eml
...
8
votes
Is there any quality difference between PNG vs BMP image formats?
There's no quality difference between BMP & PNG format (except PNG is compressed using deflate algorithm).
BMP8 can be compressed using RLE (run-length-encoding) algorithm, but BMP16/24/32/64 ...
8
votes
Search for e-mails with inline pictures in Outlook 2007/2010 advanced search
I found that using Outlook's search box I can filter emails with specific embedded in emails just by stating the extension. Examples of this are.
Look for emails with PNG type pictures => body:png
...
8
votes
Create a word cloud on linux command-line
# install python package
pip install wordcloud
# show help message
wordcloud_cli --help
# a simple demo
wordcloud_cli --background white --text input.txt --imagefile output.png
8
votes
Truncate empy space from a raw dd image
Check for sector sizes:
sudo fdisk -l '/home/user/images/test.img'
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / ...
8
votes
Split image to multiple pages
I wrote another tool that can do that job for you. Even though its primary interface is a GUI, it has a command line interface as well. Since you want to do borderless printing, just tell it to use a ...
8
votes
Accepted
imagemagick: how to change image's background color with anti-aliasing
Unfortunately, unlike your previous question regarding icons, there are many ways to approach background removal with more complex images... so there may not be a single "good" solution. That said, ...
8
votes
Compressing many similar large images?
I don't know of a specific software that does this, but there is some research on the subject. For example, see the articles Compressing Sets of Similar Images by Samy Ait-Aoudia, Abdelhalim Gabis, ...
Only top scored, non community-wiki answers of a minimum length are eligible
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