![]() ![]() The shaded relief is without the blue drainages and water bodies shown in the examples above.Īutomated relief shading methods do not produce acceptable shaded relief at very small map scales. It is available as a grayscale GeoTIFF (10,800 x 5,400 pixels) in the Geographic projection. The relief image registers with Natural Earth vector data. At full size there is still a 'pleasing' amount of noise in the sky to look natural.This page describes a generalized shaded relief that I drew, intended for making small-scale maps of the world and continents. I did apply a little contrast enhancement to the after image and some sharpening. Please also note that in my image below the sky may look too smooth since I had to resample the image to a smaller size for posting here. I did not make any noise changes to the mountains as I simply wanted to work on the sky for this demonstration. I simply selected the sky and ran the Dust and Scratch Removal filter set to Threshold 13, Radius 14 Naturally, these settings would vary from image to image. My version, shown below, took only seconds and came out less grainy than the version someone posted on that webpage. Please take a look at the attached image which I downloaded from . It can work wonders in removing text, lines, branches, artifacts, dust and scratches (of course) and grain. You have to know it well though to quickly get the results you want. Have you tried the Dust and Scratch Removal filter? This is one of those lesser used tools which is far more powerful than most people would ever use enough to realise. Resident experts would be very much appreciated PhotoPaintĭoes not seem to be able to remove any of that. SLR digital camera, especially noticable in the sky areas. Photos using the largest and highest resolution on my Pentax K200 10 MP It is difficult to see it in my sample shown here but inĪctual size it is very very visible. Smooth it, but nothing changes at all, it is like a permanent feature I have triedĮffects remove noise or moire. Nothing I do in PhotoPaint removes it or smoothes it out. I have scanned a photo to enlarge it from 4 x 6 to approx 9 x 12Īt 300 dpi. The resulting photo has a lot of what I think isĬalled 'noise' or moiré, in it. Scanning at the source by something like 893 ppi, which I don't think Resolution by the RESULT resolution/dimension, you might be actually What I'm trying to say in the above is that if you are setting the Sometimes at 300 which I'm not sure should be done-it doesn't give meĪny problems though.) Needless to say all 35 mm film/slides are scannedĪt 2400 (wish it could go higher-the next generation of scanners is Know for sure?) kills various rows or columns in an irregular patternĪnd then squishes things in various ways. Scanner's OPTICAL resolution anything else presumably (anybody I always make sure I am at an integral multiple of the Your sample, but if it is a moire pattern, that could be originating in Just thought of something, though-I can't really see the problem in Them if I come up against a grain problem in B&W. Ariel's techniques sound intriguing and I will try I have had to do a similar process for some colour negatives and slidesĪs well, but generally the problem is not quite so "in your face" as it (Grain disguising is only a part of the process ofĬourse often radical changes to contrast are made, and age damage I finally merge the object to the background, perhaps with less thanġ00% opacity. Show, and use various methods to give soft edges to the clip mask. I then create a clip mask andĪllow only the blandest of the offending ares in the blurred sky to ![]() Smart blur on the new object (sometimes way heavier than I would likeīecause that grain can be very stubborn). What I have been doing is duplicate (create a new object), run the (evident? read dominant!) in large area of skies which view as certain Photographers since Eastman released his first camera using roll film,Īnd actually got progressively worse as time went by, film speeds ![]() Or similar negatives) in grain in the sky. Monochrome 35 mm negatives (and, in some cases, prints made from those Encountering similar problem from older (1980s era and MUCH before) ![]()
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