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Questions tagged [image-conversion]

Converting an image into another format or color space

1 vote
1 answer
74 views

Python/FFMPEG - Converting a CbBI (Apple) PNG to a regular PNG

I've got a PNG file from an IPA, and trying to open it in Windows Photos inverses all the colors, so I thought that it's an Apple specific format and I found out I am not wrong: $ file AppIcon29x29....
HGStyle's user avatar
  • 63
1 vote
1 answer
179 views

How can I allow ImageMagick to convert a grayscale png to an ico file without errors?

I have a grayscale PNG, and when trying to use ImageMagick (Version 7.1.1-28) to create an ICO file it always gives me the following warning: $ convert favicon.png -define icon:auto-resize=16,32,48,64,...
Dan Herbert's user avatar
  • 1,801
1 vote
1 answer
278 views

How to put more than one image by page using img2pdf?

I have a series of images (>100) that I want to print in a specific size, that size let me put 8 of the images in a page, but when running the next command I get one image by page. img2pdf *.png --...
rurickdev's user avatar
0 votes
0 answers
35 views

cwebp arguments in right order

I am writing a command line of cwebp to convert .png image to .webp to achieve best picture with lowest size, but I am confused in right order and right values of arguments. cwebp -preset photo -sns ...
Rizwan.A's user avatar
0 votes
1 answer
41 views

Round-tripping a image through Microsoft word [duplicate]

I tried dragging a .tif image into word, and then saving that image from within word as a .tif image file. The resulting output file had more bytes (122 kB vs 72 kB) but fewer pixels (624 pixels ...
Gerard Ashton's user avatar
1 vote
1 answer
718 views

Using bitrate in conversion of a set of images to a video changes the length of the video

I have ffmpeg version n5.0.1-3-gb655beb025 and I am trying to convert a set of 120 PNGs to an AVI file with 60 frames/sec. When I do that with: ffmpeg.exe -r 60 -i Frame-%%05d.png MyVideoLQ.avi it ...
user1712948's user avatar
0 votes
2 answers
778 views

How do I convert ICNS to PNG while removing the extra transparent area?

I have about 200+ .icns files that I would like to convert to png to use somewhere else. However, the .icns files are a 1024x1024 area that come with a sizeable transparent area around the actual icon....
Sidewinder's user avatar
0 votes
1 answer
1k views

How to convert BMPs (bitmap black&white) to 1-bit color depth animated GIF

I have a sequence of BMPs that are 1bpp (1-bit color depth, black & white of course). I want to combine them into a single animated GIF, with 1-bit color depth. Is this possible? So far I have ...
Lê Thành Vinh 's user avatar
2 votes
1 answer
2k views

How to batch convert PNGs to JPEGs and preserve timestamps in filesystem & EXIF header?

I sometimes take screenshots on my Mac during video-calls with friends/family (with their consent of course!) and would like to add those images of a photographic nature to my Apple Photos Library. I ...
porg's user avatar
  • 389
10 votes
1 answer
5k views

Is it safe to simply rename a .jfif file to .jpg?

I downloaded several images that are are .jfif files. I have various enhancements (e.g. context menus) and processing scripts that are keyed to *.jpg files and would like to use these with the new ...
Martin's user avatar
  • 1,936
1 vote
1 answer
2k views

Convert table image to Excel, using Excel

I have the table below in the image png file format. Would it be possible to convert this to an Excel table using Excel?
emnha's user avatar
  • 351
0 votes
0 answers
1k views

On Widows, how can I screen capture, then paste as JPG (not PNG) into gmail?

How can I capture part of a screen on Windows 10, then paste as a JPG? Using the inbuilt snipping tool and third party tools, the resulting pasted image ends up as a PNG in Gmail. PNG files are ...
Bryce's user avatar
  • 2,355
13 votes
6 answers
10k views

Can I create an image with a specific size in bytes?

I want to create an image file so it's exactly 5MB for testing purposes. Is it possible?
John Doe's user avatar
  • 167
0 votes
1 answer
458 views

Bulk convert image-data URIs to images

I have a text file of 391 image-data URIs, one on each line. I need to batch-convert them all to images, named according to their sequence (i.e. image001.png, image002.png or similar). What do people ...
Zarka's user avatar
  • 395
0 votes
0 answers
137 views

How can I open or convert JTIP (jpeg tiled image pyramid) files?

I've found some old photos (.jpg) from 2005 on a harddrive and can't find a way to view them. Using droid, I found out that these seem to be JTIP (jpeg tiled image pyramid)-files. The puid of this ...
BlastingAgent's user avatar

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