Problem with -size and -resize and tiff

[forenhopper]

Hi,

convert.exe img.jpg -resize 354x413 -size 354x413 xc:white -compress LZW -depth 8 -colorspace RGB -type TrueColor result.tiff

I get a Image with 354x307. Thats ok. The image was resized proportional. But i need a Image with the size 354x413 and white Backgroundcolor. Imagick makes only one Imageresize.

Where is my failure?

[forenhopper]

solved the problem by my own:

convert.exe (img.jpg -resize 354x413 ) -size 354x413 xc:white -gravity center +swap -composite -compress LZW -depth 8 -colorspace RGB -type TrueColor img.jpg img.tiff

[forenhopper]

another Problem, my Images are now all only 72dpi. How can i hold my dpi Value? The dpi changes from Image to Image

[fmw42]

I guess you will have to reset it with -density

[anthony]

As you 'swapped' the images, the new canvas image is teh destination and as such it is the one with the meta-data that is kept!

Rather than compositing your image onto a canvas, use -extent instead. That will use a 'clone' of the original image for the canvas and thus preserve density and other meta-data information.

Code: Select all

convert.exe img.jpg -resize 354x413 \
        -background white -gravity center -extent 354x413 \
        .....   img.tiff

Also see Image Padding in Thumbnails for information on sizing an image to fit a specific 'area'.