Photoshop Rectangles.

...to curved rectangles.

[macz_g]

I have an image that is a rectangle and I want it to have curved/ rounded corners.

I can draw a shape using the tools that has curved corners but I can't work out how to take my exisiting image (360 width x 100 height) and crop or mask it to have straight edges but rounded corners.

Can anyone point me in the right direction?

[monkeythumpa]

You can take your rectangle with curved corners and place it on a background that matches your background. The image will still be rectangular but it will look the way you want it on the page.

[travelin cat]

This is easy enough....

Select the rectangle
Go to the Select Menu > Modify> Smooth
Choose radius --experiment with this but I generally use 8
Invert
Delete

Voila!

[metacortex]

I can draw a shape using the tools that has curved corners but I can't work out how to take my exisiting image (360 width x 100 height) and crop or mask it to have straight edges but rounded corners.

Take the rounded rectangle tool (A group of shapes bellow Text Tool in Cs). Make a trace. After this, you can note a "Radius" value in the option table; modify it as you wish.

Press Control + Enter to convert it as a selection.

Now you can assign a fill, gradient, fusion Fx......

Don't forget to create a new layer before.

[tangor]

All above are correct, however do remember your image is still rectangular. Insert in web page with same color as deleted curves, or convert to transparent corners (.gif works well) to put on any color page.