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I have around 400 images that are taken from a 8 megapixel camera. I want to reduce the image size to around 4k pixels. What is the fastest way to do this, I have access to both windows and linux systems.
Malfist
Posted 2010-11-04T03:26:48.950
Reputation: 2 761
8
Really only 4k pixels? Anyway, using GraphicsMagick you can run:
gm mogrify -output-directory 4k -resize 52x78 *.jpg
Or, if you prefer, ImageMagick has pretty much the same syntax.
Tyler
Posted 2010-11-04T03:26:48.950
Reputation: 4 203
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Irfanview. Does it all and it's free.
ggutenberg
Posted 2010-11-04T03:26:48.950
Reputation: 1 072
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On Windows I've always used nconvert:
nconvert -thumb 78 78 -o $\thumb\% *.jpg
XnView (on the same page) can do the same.
Joey
Posted 2010-11-04T03:26:48.950
Reputation: 36 381
How do you use that @Joey? – Ivo Flipse – 2010-11-05T09:31:19.847
Might be that I got the syntax for -o slightly wrong; just didn't have a directory of images to test with. – Joey – 2010-11-05T22:43:27.817
Yes, Irfanview would be my choice for this job on Windows machine. The gui interface to specify this batch job makes its slightly easier than using command line. – sabre23t – 2010-11-04T10:59:23.807
can you batch this? I've got 400 images. – Malfist – 2010-11-04T15:18:28.020
Ya, that's what's great about Irfanview. Has a batch processing mode with a ton of options. In fact, batch processing is really all I use it for. – ggutenberg – 2010-11-04T15:27:23.833