resizing without resolution damage

Radmacdaddy

I have used photshop for years... mostly for pretty basic stuff really, resizing images for basic web design, laying out basic images for my artwork, etc. I'm 90% self taught, so forgive my lack of PS lingo.

One thing I am confused about is, why do i lose resolution when I resize an image?

Presently i have a 240 res image i downloaded off a clipart site. Its size was 1600x1342 pixels when i began and I colored it in in PS and then reduced it to about 100x80 pix to use a little icon on a web page. When I did this it became a bitty ugly mess. I've used resizing when placing one image on another and resizing it as a seperate layer with the cross hair tool (or whatever it is called), and it seems to get reprocessed and come out looking great. Is that possible to process it into a clean smaller image with going into Image/image size... or can i do it somewhere else, at all???

Thanks for having this forum! I need to get this right!

SteveS · Posted: Tue May 24, 2005 10:44 pm Post subject:

There is no reason at all why an image should turn into a "bitty ugly mess" when you downsize it.

You want to use the image > image size feature if possible though, that is what it is for. Be sure the "Resample image" box is checked. Also make sure after you resize it, that you view it at 100% on your screen.

You can also use the crop tool to resize an image.

How about posting some sample images as an attachment so we can see what you are talking about.

cbadland · Posted: Wed May 25, 2005 8:17 am Post subject:

There is no way to keep the same resolution when resizing an image file made up of over two-million pixels down to one of just eight-thousand pixels. Pixels are the building blocks of the visual information in the file. You are essentially tossing out 96% of the data making up the image when you do a reduction like that. As Steve points out there may be ways keep the image from looking becoming an ugly mess, but you can’t get blood from a turnip.
(just full of aphorisms today)

willmoore · Posted: Wed May 25, 2005 11:18 am Post subject:

remember too, it has a lot to do with the image you are downsizing. The more detail in the image, or should I say the more detail required to get the image across, the worse it will look when downsizing. As an inane example, a four inch circle downsized to 1/3 of an inch will still look like a circle but a 4 inch landscape painting, well, you get the idea.

Aldog · Posted: Fri May 27, 2005 2:04 pm Post subject:

thehermit · Posted: Fri May 27, 2005 3:52 pm Post subject:

http://members.ozemail.com.au/~binaryfx/PSTV_links.html#R

Some food for thought from a PS user who has collated more information and also memorised more than is healthy. Respect to Mr Marsh.

Enjoy.

SteveS · Posted: Fri May 27, 2005 7:17 pm Post subject:

Aldog,

Resample simply means Photoshop can add, or subtract pixels from your image.

With the box unchecked, your pixels will remain the same, but your print dimensions will go up or down depending on what you set the resolution at.

Bicubic is the best option, (I have always heard) and should already be your default setting.

By the way - what the hell is bicubic? What does that mean?

Aldog · Posted: Sat May 28, 2005 12:13 pm Post subject:

Guest · Posted: Sat May 28, 2005 1:25 pm Post subject:

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