What I can't understand is why the effect shows up only after the shots have been uploaded to my Homepage. Seen on my own monito, before upload, they have to be zoomed 6 times to achieve the same 'orrible distortion.
Gerry Winskill Bones wrote:
I don't know much about PhotoShop but firing pictures off to Airliners made me look at other programs like Nikon and Canon default applications, IrfanView and a couple of others I forget the names of. Some had to be used carefully because once you applied a series of corrections to a picturethese would also be applied to any subsequent picture loaded.The JPG compression used can drop image quality a lot but your pictures show much more distortion than a simple drop in resolution. In PSP resizing a picture gives you the options of selecting pixel resize, bilinear resample and bicubic resample. All affect the picture in different ways but not as severely as your shots - their effect is more pronounced on small imagesrather than your 3000 pixel images.What's annoying me is that I recognise the distortion in your pictures but I can't remember is the program or effect that causes it. My memory is telling me it is similar to a smoothing filter used in IrfanView but I don't trustmy grey cells that much to say this is the right direction to look in.Having said that I've been playing with a similar filter in PSP (whilst talking to Fred on IVAO). In the Noise section there is a filter called Edge Preserving Smooth and if I apply it to some of my aircraft shots it produces a similar effect to your photos. I'm comparing my results to the shot of your Let 410 landing on 21 because if you take the cockpit area of this photo the distortion is very marked. Edge Preserving Smooth doesn't quite do what it suggests. It says in the help file: "Use this command to remove noise in an image without losing edge details. This feature finds details that may be object edges and leaves these areas unchanged while smoothing the areas between the edges. For example, edges of facial features may be preserved while removing a blotchy complexion. This feature is also good for minimizing film grain." In practise I find it doesn't quite do this. One side effect of this filter is that it removes nuances of shade in colour bands and this tends to give the pictures a sort of oil painting look to them. It's hard to explain this but I have a couple of shots that may show the effect. In both cases I needed to sharpen the picture slightly and I used different tools for each. In the first shot at http://www.homepages.mcb.net/bones/WebAircraft/238Noratlas.jpg you can see that I applied a sharpen filter - but this is too aggressive (zoom into the rudder area and you'll see unwanted banding between the rudder and sky). In the second shot I tried Edge Preserving Smooth but this kills fine detail - http://www.homepages.mcb.net/bones/WebAircraft/64144_C130.jpg. Again, if you look closely at this image you will see the silver skin of the aircraft is a bit too smooth - all the detail has gone. I'll add that this was with EPS set at minimum level as it was much worse on default setting. What is rather noticeable in your shots is the effect of the filter that has been applied on defined edges - they are distorted. The aircraft wheels are a good example as they are no longer circular but are distorted as if by strong heat shimmer. I've tried to reproduce this in PSP but I can't. Although EPS makes tone and shade look similar to your shots it doesn'tdistort the image to this degree - wheels still look round.bones bones@xxxxxxx http://woodair.net -----Original Message----- From: jhb_airlines-bounce@xxxxxxxxxxxxx [mailto:jhb_airlines-bounce@xxxxxxxxxxxxx] On Behalf Of Gerry Winskill Sent: 03 September 2008 08:08 To: jhb_airlines@xxxxxxxxxxxxx Subject: [jhb_airlines] Re: Plane Spotting loaded as a single: http://www.homepages.mcb.net/gwinsk/F.jpg ============================================== Loaded ex SD card http://www.homepages.mcb.net/gwinsk/TEST.JPG ============================================= Which provides the answer but not the solution!The first one has been cropped in Photoshop. That resulted in a size increase, from 4.0 Mb to 4.7 MbNext I've run through Photoshop but saved, via the "For Web" route, as a .gif. Better but not much, athttp://www.homepages.mcb.net/gwinsk/TESTC.gif =================================================I'm baffled, since I'd guess the majority of pro shots on the web have been processed in Photoshop, to achieve the effects, filtration etc, that they want.Gerry Winskill Gerry Winskill wrote:They've been through Photoshop Elements but they have been as seen at my end too.I'll try putting up one straight from the SD card. Gerry Winskill Bones wrote:It's not just noise - those images are seriously degraded.At first I thought you may have JPG compression set too high as the images are only around 2mb but there's more to it than that. I agree that the noiseis bad but a close look at the aircraft shows that some sort of imagemanipulation is affecting them. It's something I've seen before but I can'tquite place where..Did you run the pictures through an editor before uploading? Something likeIrfanView? bones bones@xxxxxxx http://woodair.net -----Original Message----- From: jhb_airlines-bounce@xxxxxxxxxxxxx [mailto:jhb_airlines-bounce@xxxxxxxxxxxxx] On Behalf Of Gerry Winskill Sent: 02 September 2008 21:01 To: jhb_airlines@xxxxxxxxxxxxx Subject: [jhb_airlines] Re: Plane SpottingI agree about the car park, and the South side usually suffers from heat shimmer. Not today though!A decent lens makes it a realistic spot. Todays efforts were a test of the lens' VR capability, hand held, against a blustery wind. An idea of what comes into play can be seen from some of today's crop, though I can't understand why the Homepage versions are plagued by noise, when, at my end, they are noise free and very sharp. Any ideas under plain brown wrapper, please.Viewing link is: http://www.homepages.mcb.net/gwinsk/EGNS/ Gerry WinskillNo - he's ATC. Not exactly a sprog any more but sitting comfortably in themiddle ranks. <g>As far as photographing aircraft goes from the any public areas Ronaldsway is awful. Go down to the south side so the sun is behind you and the apron is too far away for decent shots. Go to the car park and you are shootinginto sun at aircraft that mostly have their backsides pointing at you.Thereagain you get somewhat spoilt by having the advantage of being able totakeshots like this from the tower: http://www.homepages.mcb.net/bones/WebAircraft/XV185_C130.jpg bones bones@xxxxxxx http://woodair.net -----Original Message----- From: jhb_airlines-bounce@xxxxxxxxxxxxx [mailto:jhb_airlines-bounce@xxxxxxxxxxxxx] On Behalf Of Gerry Winskill Sent: 02 September 2008 14:21 To: jhb_airlines@xxxxxxxxxxxxx Subject: [jhb_airlines] Re: Plane Spotting Hi Fred,It galvanised me into having a camera laden morning down there. Mind, I was outside the fence, at the Manx Flyers side, whereas I'd guess the chap who runs the site must be an apron worker.Gerry Winskill Fred Stopforth wrote:Wow that's an interesting page of aircraft pics and also for zooming into to look at scenery and buildings to compare with the addons.That's an evenings entertainment there for me. Thanks. Fred----- Original Message ----- From: "Gerry Winskill" <gwinsk@xxxxxxx> To: <jhb_airlines@xxxxxxxxxxxxx> Sent: Tuesday, September 02, 2008 8:17 AM Subject: [jhb_airlines] Plane SpottingWhilst having a clearout of my web Favourites I came across one I'd forgotten existed but is still of interest. Worth a look, since it's obviously kept up to date. http://www.island-images2.co.uk/Aircraft/Air08/zAviation2008b.html Gerry Winskill--------------------------------------------------------------------------------No virus found in this incoming message. 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