Photoshop CS5 Content-Aware Fill This new feature of Content-Aware Fill helps us in removing unwanted areas from any given image; it is able to do it by filling the space that is left behind by utilizing pixels which surround it. It even goes as far as matching the lighting tone and noise. It is a welcome feature for beginners or novices and does not require in depth knowledge of Photoshop or graphic design. All you got to do is hit Shift with Delete and you are done.
Adobe Photoshop CS5 PatchMatch A patch match is a randomized correspondence algorithm for structural image editing. It provides tools for image recomposition and image completion and image retargeting each operation is controlled through user specified constraints. It also provides tools for interactive image reshuffling. It demonstrates a fast algorithm for finding patch to patch correspondences between two arbitrary image regions. It can be employed in a wide array in new and existing patch based image manipulation enabling novel workflows for structural image editing. It can be useful for many other applications in media synthesis and analysis.
Compositing and Selecting Hair in Photoshop CS5 Adobe Photoshop CS5 has a GREAT NEW Feature called Edge Detection that will finally allow you to quickly make selections of images with both hard and soft edges. It got an edge over previously used tools like quick selection tool which tends to go shabby around soft edges.
Adobe Photoshop CS5 All New Painting Tools These include bristle tips which have a set of new tips to which you now have access to. You have dynamic tip which changes based on how it is impressed and touched upon the canvas. Every single brush has a wide range of expressive characters in it which was not there in Photoshop previously. There are different controls and tips which are offered here.
Mixer brush: this feature helps you to blend and mix colors together just like in wet colors. It gives an amazing simulation of natural media style tools
Sample all layers: It's in the property bar of the mixer brush. Helps in giving an image a more painting type of look.