The majority of Photoshop’s effects are most effective when used on photographs, but they can also be used on other types of images. One feature effect that works well on photographs is the lens blur filter, is uses effects that are similar to actually lens used on cameras e.g. focal distance, specular highlights and Iris.
These effects are attached to sliders where you can adjust the size of the aperture, as you would do on a camera, the curve of the blades and the number of blades. And then you apply the adjustment to the area that you want to blur, the effect the acts as a depth of field control tool.
After this you adjust the specular highlight control which then makes the catch lights white again, this process works on a alpha channel by creating a gradient mask and this means you can pin point focus to a certain plane in for example a landscape to make the foreground and background appear out of focus.
The crop and straighten tool is perfect for photos which have been scanned but haven’t been align properly by the scanner, there are scanners available which automatically rotate a skewed photo and crop it but if your scanner doesn’t have this feature then the crop and straighten tool saves a lot of time aligning photographs.
Photograph filters is a feature which professional photographers will appreciate! The photograph filters are automatic colour correction filters and applying these will automatically add a preset filter and then you pick the colour you would like to add using the colour picker option, the intensity of a filter is controlled by an opacity slider and fade option, automated photograph filters will pick which filter would work best for your image without you having to have any input.
Tags: cropping photographs, CS3, filters, Photoshop, Photoshop Effects