Legacy ImageMagick Discussions Archive

Perfect thank you very much!

So this is a bug isn't it? Should I report it or you've already did it?

For sure here it is:

Hi,
I've just checked and the image is not in true colors (even after applying my command line). Here is the reduced identify -verbose:

Image: testFiles/640x480_5_multipleformat/3.jpg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Class: PseudoClass
Geometry: 207x300+0+0 ...

Yes indeed I have just realized that the image is grayscale.
However, I thought the option -type TrueColor was supposed to force grayscale image to be written as normal images. The doc says:
"-type type the image type.

Choose from: Bilevel, Grayscale, GrayscaleMatte, Palette, PaletteMatte ...

Hi,
I'm trying to convert a bunch of images so that they are all exactly similar (size, jpeg format...)

What I use is:
convert 4.jpg -background '#000000' -resize 640x480 -gravity center -extent 640x480 -strip -compress JPEG -quality 80 -sampling-factor 2x2,1x1,1x1 -type TrueColor 4_b.jpg

This ...

The problem isn't that all images are not the same size. I have found a solution. The problem was the extra info in the jpeg '-strip' solved the problem. Here is my final command:

convert "$J" -background '#000000' -resize "$FORMAT" -gravity center -extent "$FORMAT" -strip -sampling-factor '4:2:2 ...

Hi everybody,
I have been fighting quite a lot right now to try to make image magick convert all sorts of images (jpeg, png, gif will be enough) into a jpeg. However this jpeg needs to really standard (sampling, format, resolution...) this because I want to feed the images after to avconv to make a ...