Hat schon mal jemand mit #imagemagick ein Bild von einem digitalen Display für #tesseract OCR aufbereitet? Wie sähe eine näherungsweise sauber arbeitende Zeile für #convert hinsichtlich Schärfung, Kontrastverbesserung und Graustufenkonversion aus? Retoot gerne gesehen.

JPEG 2000 (+25)

I am still wrapping my head around #jpeg2000...

It looks like #Gimp 3 removed the exporting support for it...

I can still use #imagemagick to trigger the conversion from any source to jpeg2000 to PDF.

But fewer steps are better...

Just for fun I'm writing an #ILBM impl. for #Qt (QImageIOPlugin). I'm having trouble with the PCHG chunk. Any #Amiga dev/hobbyist here who might have a clue what's wrong? My code:
parsing: https://github.com/panzi/qilbm/blob/4222c4bdf5b81ab67fc68b3647ca231d1685d53a/src/ILBM.cpp#L865-L1097
rendering: https://github.com/panzi/qilbm/blob/4222c4bdf5b81ab67fc68b3647ca231d1685d53a/src/ILBM.cpp#L1297-L1346
sample file: https://sembiance.com/fileFormatSamples/image/iffILBM/pchgcmp.iff
Other impl. I've looked at and can't finde the difference to:
https://aminet.net/package/dev/misc/PCHGLib14 (includes 2 images that *do* work)
https://fossies.org/linux/netpbm/converter/ppm/ilbmtoppm.c line 1596 and onward, which is used by #ImageMagick. #RetroComputing

#Linux #Bash

4 JPGs zu einem zusammenfassen,
Rand rundrum dran machen und beschriften. Es ist mal wieder ein 1-Liner für #Bash und #Imagemagick

montage -strokewidth 3 -stroke black -border 2 -fill white -pointsize 40 -gravity south \( 1.jpg -annotate 0 ARD \) \( 2.jpg -annotate 0 ZDF \) \( 3.jpg -annotate 0 3SAT \) \( 4.jpg -annotate 0 ARTE \) -tile 2x2 -mode Concatenate fourpic.jpg

Google: "I see you're searching the #ImageMagick documentation again. Have you considered religion?"

Andrew
@landrew

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#imagemagick #GNU #UNIX #LINUX #FOSS #FLOSS #welcome #polaroid #art #scifi
#photography #fediverse #mastodon

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we are longing to hear you knocking ..

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i'm in the mood ..

Разлом делится мудростью!

https://bbs.quietplace.xyz/s/thread/188.html#189

#ImageMagick #TIL

Standard interchange image format for Open Source DTP

Hi people,

with all the mayor GUI #DTP software reaching their peak: #GIMP, #Scribus and #Inkscape; and the well established #TeX software #ConTeXt and #SpeedataPublisher, and #ImageMagick we need a serious discussion about which image format we should adopt that works seamlessly across all these applications and it is generally accepted in the press workflow, whereas is embedded or not into a PDF file.

It should be something that has good quality, supports #CMYK and Alpha channels and it is #opensource friendly and perhaps an #openstandard.

I would dare to say that perhaps jpeg2000 matches most of them, it exists from a very long time and can be adopted as common ground, however it is need a combined effort, if what I am writing makes sense for you.

ImageMagick supports it, Gimp 3 currently doesn't, #LuaTeX and #LuaMetaTeX neither. I guess that Inkscape once it will be able to export in CMYK it will decide which format using to store images in CMYK with alpha into a PDF.

It would be very beneficial if we can adopt a format that works everywhere and it is press friendly, thanks.

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just in time :D

@DNA_FILMPROJECT

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let's keep on moving on :D

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i would rather feel compressed ..

how to retrieve #picture #metadata in #linux
1. simpleminded:
file x.jpg
2. camera-specific:
exiftags x.jpg
3. mastermind (https://superuser.com/questions/275502/how-to-get-information-about-an-image-picture-from-the-linux-command-line) using the #ImageMagick package :
identify -verbose x.jpg

ImageMagick: delegate library support not built-in #2404 #imagemagick

https://askubuntu.com/q/1544148/612