Leo Posted June 7, 2007 Report Share Posted June 7, 2007 I thought this may prove very interesting to examine these different techniques side by side. I learned some things from this exercise. All these photos were shot with a Canon S3 IS. This photo was shot at 2816x2112 pixels super fine and resized with no special algorithm filter. Note the photo has a slightly grainy appearance. This is because a straight resize filter has no criteria for picking the least significant pixel in the resize operation. Here I've resized the same photo with a Lanscos resampling filter algorithm. This photo doesn't have the same grainy appearance and edges in the photo are more crisply defined. This last photo was shot with the Camera in 640x480 superfine mode. It needed no resampling or resizing to be posted here. No grainy appearance, and well defined edges. The biggest surprise to me is suddenly the dog hairs on the bed and pillow are now clearly visible. In the full size photo the hairs are there. But apparently that detail does not survive resizing. Zoom around in these photos and examine them closely. It seems avoiding resizing preserves the most detail. Even more surprising is the unresized photo is also the smallest file size of the three photos. So it also appears that a hardware resize using the camera itself to shoot a smaller photo is very efficient. The end result for me is in the future I'm gonna pay a lot more attention to the size mode I'm shooting in. Especially with respect to what I plan to do with the photo later on. Quote Link to comment Share on other sites More sharing options...
billkay Posted June 7, 2007 Report Share Posted June 7, 2007 The first looks almost over sharpened. I like the middle one best. Quote Link to comment Share on other sites More sharing options...
wtnhunt Posted June 8, 2007 Report Share Posted June 8, 2007 Actually on my 17 inch screen the first pic looks the sharpest and most crisp to me. Second pic looks just a bit softer(closer to how it should look), and would have to agree with Bill that it looks better than the other two. Quote Link to comment Share on other sites More sharing options...
PAstringking Posted June 8, 2007 Report Share Posted June 8, 2007 i am also agreeing here...the first is over sharpened. to much detail. the second pic as great detail but that nice soft feeling. Quote Link to comment Share on other sites More sharing options...
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