How to resize and image without loosing quaility image

[joel_fe]

hello, to everybody:

When a resize images I notice that looses some quality, ¿what can y I do for generate rezised images with the best posible quality?. Actualy im usuing the next command

convert originalimage.jpg -resize 300x300 -quality 100 resizedimage.jpg

I' ll apreciate any help

regards

Joel

[glennrp]

If your image is a "graphic" and not a natural image, try using PNG format instead of JPEG.

[etiennesky]

If you're stuck with a jpeg you can use the lossles cropping functionnality of jpegtran, it will retain the exact same quality without anyartifacts after cropping the image to the desired size.

http://sylvana.net/jpegcrop/

[anthony]

you can not do a lossless resize of a jpeg. resizing is itself a lossy process.
Lossless cropping is posible but only to 8 bit boundaries.