Resizing an Image

[jcottrell]

I'd like to load an image (bmp or jpg) of unspecified size, resize it, and save it to a memory stream for display. I thought I could load it into a picture box and resize it that way but:

a) there has to be a cleaner more direct way to do this (i.e. shouldn't I be able to do this w/o loading it into a pictureBox?)
b) it looks like pictureBox holds an orginal copy of the image and gives you back that (via pictureBox.Image.Save), so this technique doesn't really seem to work anyway.

Ideas?

[CornedBee]

Load it into an Image. Create another Image with your desired target size. Stretch Blit the source image to the target image. Save the target Image.

[sagey]

.getthumbnail method is useful

[jcottrell]

Thanks guys, those are some good ideas...

[PT Exorcist]

.getthumbnail does an awful job as it will blur the whole image

[sagey]

i've used getthumbnail and it hasn't blurred the images, any more than reducing the size in photoshop etc.

[PT Exorcist]

Maybe you had small images and didn't notice..but I assure you if you try with 1024x800 pictures it will blur them up :blush:

[Redth]

http://www.vbforums.com/showthread.php?threadid=239738&highlight=resize


I ran into this problem a long time ago... but there is a good way to resize and even compress into jpg images properly... check out that link... and good luck :)