Northwestern Pacific Railroad Network

Dedicated to Sharing the Heritage of Redwood Empire Railroading

When you use the "View Full Size" link on those B&W photos they appear as I scanned them....


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Comment by Dave S. on February 12, 2017 at 3:05pm

PNG files offer a lossless form of compression, whereas JPG image compression often makes compromises which result in aliasing, interference patterns, or simply a fuzzy image.  I'm finding that the PNG files of the 1986 Schellville repairs show up fine on my phone (Safari) or on a Microsoft browser (the PNG format is a Microsoft creation).  However, that really doesn't explain why "View Full Size" provides improved images on Firefox.

Comment by SMART Fan on February 12, 2017 at 1:08am
png files can have transparency appears to be the problem here. jpg files do not and when saved wont have this issue. If the transparency is removed in the png files, they will appear normal.
Comment by Richard Todd on February 11, 2017 at 4:47pm

Dave, I have always scanned and saved as JPG's. Both my B7W's have always appeared normal. I don't know if them being PNG files make a difference.

What ever the file system, these are great shots.  A great reminder that water has always been a problem for the NWP.

Comment by Jennifer on February 11, 2017 at 2:47pm

They look better in full size to me as well. 

Comment by Dave S. on February 11, 2017 at 1:23pm

... dark, or normal contrast.  However, everywhere else on this site these photos appear washed out.  Anyone else run into this?  I scanned, cropped, saved as PNG then uploaded.

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