Changing aspect ratio

[pillarbox]

Im ising a BenQ FP222W LCD monitor plugged in (VGA) to Inspiron 5100 laptop (ATI Mobility Radeon 7500 video card).  I can only view photos in full widescreen (16:9).  I would like to view photos in "standard," i.e. 4:3 aspect ratio  with "pillarbox" effect, for editing without "stretched" image display. Can I accomplish this by connecting monitor via DVI using Sewell USB to DVI external video card and, if so, how? Thanks

[patrick5432]

 First lets crop the picture to remove the two grasses coming in at each side.Image>Crop

imageresize1    
   2 Now we will resize the photo so it suits the printerresolution.ClickonImage>Resize>Image size. Make sure the Resample image is swicthed off and constrain proportions is on. This ensures that the file size stays the same but gives an indication of the true print size. Most digital cameras record pictures at 72ppi and in this case the file was just over A4 size. This reduced to 6x8in when the resolution was increased to 240ppi.

grasses2    imageresize2

3 Now to stretch the image. Click on Resample Image and turn off Constrain proportions. This will change the file size and allow the shape to change when you key in new figures. If the sizes are not set to inches click on the arrow at their right and select inches from the list.

Key in the desired measurements­ in this case 4 inch wide by 10 inch height. The photo will spring into its new shape.
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