Image reduction progression, 300x300 to 800x800 (CAUTION: dialuppers)

[James_OldeTowne]

I thought this might be a useful little exercise for some folks. Elsewhere, I posted a 1712x1712 pixel image of this same coin, a 1964 Kennedy half-dollar. Here are examples that show a progression in image reductions, with sizes including 300, 400, 500, 600, 700 and 800 pixels square.

 

At some point, the resizing program may introduce "crosshatch" distortion, especially on the larger images. One advantage of small images, such as the 300x300, is that they give the illusion of appearing sharper. Incidentally, this was an artifact that the old Macintosh computers took advantage in the 1980s - they had small screens with sharper images.

 

You'll note that the original image was partially out of focus. This focus is compensated in the smaller images in that they appear more fully in focus than do the larger versions.

 

Discussion welcome!

 

300x300 - 33154 bytes

 

 

400x400 - 50504 bytes

 

 

500x500 - 69507 bytes

 

 

600x600 - 104665 bytes

 

 

700x700 - 119041 bytes

 

 

800x800 - 179548 bytes

 

 

[leeg]

Nice example James! (thumbs u I've found that some programs such as XnView for Windows causes less distortion than other programs. So it's important which editing sofware you use and the original size of the image.