[Cartertonian]

OK...need help.

Generally speaking I'm reasonably competent with simple graphics jobs like resizing images, but lately I've been struggling. My work VLE has a requirement of 90 x 90 pixels and a maximum file size of 6Kb for avatars and students keep sending me their holiday snaps for me to crop and resize as avatars, but I can't seem to reduce them without badly affecting the image. Cropping and resizing to 90 x 90 pixels isn't a problem, but the last two I did that to have had 30Kb+ file sizes and if I try to lower the pixels/inch then the image becomes unrecognisable. Do I need to do something with the original image before I crop and resize, or is it something else I need to do?

[U184]

Are you using sinc lanczos3 or cubic?

[The Clockwork Rat]

You could try limiting the pics to B&W

Other than that, I assume you're saving the images as JPEGs. Now, using GIMP I can decrease the quality of the image when saving. On a 90x90 pixel image, decreasing the quality to 80% will not look noticeably shit.


18.1kB


5.7kB


1.9kB

[Cartertonian]

Are you using sinc lanczos3 or cubic?

If I knew what either of those were I'd be in a position to answer!

I'm using either Adobe Photoshop or Paint.net (depending on whether I'm at work or at home.

TCR, I already tried to reduce the quality and the pic became unrecognisable.

[The Clockwork Rat]

Try using GIMP? It's free and you wouldn't need to go deep to do what I just did.

[The Clockwork Rat]

Okay, so the changes I made for the second picture (5.7kB) were:

• Whilst resizing I reduced the X/Y resolutions to 32 pixels/inch.
• Interpolation was cubic (not that that makes any difference so far as I could tell).
• Quality was 80.
• EXIF data, thumbnail and XMP data were not saved.
• DCT method (no idea what that means but changing it helped) was floating-point.
• I did not use "Progressive", whatever that is.
• Subsampling was 4:2:2 (chroma halved).

[U184]

I also use gimp.

I took this image



and sized it down to 100x100 and 5.83 KB



Here is your pic for comparison


All I did was manually size it, hit dot for dot and enhanced once.

[Tailz]

I also use gimp.

I took this image



and sized it down to 100x100 and 5.83 KB



Here is your pic for comparison


All I did was manually size it, hit dot for dot and enhanced once.

I have to say, I think that is a terrible photo of the actor, the look on his face just says "Duurrrr..."

[Heisenberg]

I have to say, I think that is a terrible photo of the actor, the look on his face just says "Duurrrr..."

Perhaps, but then...

...doesn't exactly scream "towering intellect" either.

[Tailz]

Tailz wrote: I have to say, I think that is a terrible photo of the actor, the look on his face just says "Duurrrr..."

Perhaps, but then...

...doesn't exactly scream "towering intellect" either.

It is not meant too...