Some people still don't understand the various methods of resizing a picture smaller or larger.  Most people just use the percentage and Pixel Resize.  Here is the correct way.  I've noticed that some tutorial writers get the Bicubic and Bilinear reversed when telling you to resize.  I've increased larger than 125% and still looked ok.  All this information is right out of the book which most people don't read LOL!

 

If you use the Smart size or the Pixel size to make small, you will have to sharpen your picture.  If you use the Bicubic resample (making larger) or Bilinear resample (making smaller) you don't use the sharpen, because it is automatically done.  If you do, it will distort the picture some.

 

Smart Size:  Where Paint Shop Pro chooses the best algorithm based on the current image characteristics.

 

Bicubic Resample:  Uses a process called interpolation to minimize the raggedness normally associated with expanding an image. As applied here, interpolation smoothes out rough spots by estimating how the "missing" pixels should appear, and then filling them with the appropriate color. It produces better results than the Pixel resize method with photo-realistic images and with images that are irregular or complex. Use Bicubic resample when enlarging an image.  Best not to increase more than 125% before it starts to distort.

 

Bilinear Resample:  Which reduces the size of an image by applying a similar method as Bicubic resample. Use it when reducing photo-realistic images and images that are irregular or complex.

 

Pixel Resize:  Where Paint Shop Pro duplicates or removes pixels as necessary to achieve the selected width and height of an image. It produces better results than the resampling methods when used with hard-edged images.

 

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