Resize image
 

I need to resize image. The file size is 2272x1704 JPEG format. I want to resize to size 320x240.

/usr/bin/X11/convert -size 100X100 file.jpeg -resize 340x240 file.jpeg
The result after is wrong size. Any ideas what is wrong with the command?

There's nothing wrong with the command. But convert does keep the aspect ratio of the original picture. You can 'force' convert to calculate the correct ratio:

convert -size 1463x973 example.jpg -resize 640 example.resized.jpg

will give you a resized picture that is 640 (you provided this) by 426 (calculated by convert)

convert -size 1463x973 example.jpg -resize 640x480 example.resized.jpg

Will have the same result.......

I have a picutre 2272x1704 and when I resize it

/usr/bin/convert -size 1704x2272 example.JPEG -resize 320x240 example.jpeg

The result of this is picture 240x180 .. What I'm doing wrong ?
I need picture 320x240

Thanks

LOL

2272x1704 or 1704x2272 which one is it???

2272x1704 = 4:3 = 320x240
1704x2272 = 3:4 = 240x320

convert -size 2272x1704 example.JPEG -resize 320x240 example.jpeg
convert -size 1704x2272 example.JPEG -resize 240x320 example.jpeg

Hope this helps.

Original Size: 1704x2272

I need picture of size 320x240. No matter what , after I resize picture I got picture 240x320..

convert -size 1704x2272 example.jpg -resize 320x240 example.jpeg
convert -size 1704x2272 temp.jpg -resize 240x320 temp.jpeg

Like I said before, convert respects the ratio of the original image. It cannot do what you ask for.

Use mogrify (from the same ImageMagic toolkit).

mogrify -resize 340x320 inputfile.jpg

You might have noticed the lack of an outputfile.jpg. There is none. The original is overwritten!