-
Welcome to the new forums! Please read this first. For known issues we are working to resolve, click here.
602 samples to reassure me....
- Thread starter ga-ga
- Start date
ga-ga
Senior Member
No my Brother is Tony a famous artist....... He only has an E-10 .........
and I think he's jealous.....
thankyou
where the finger points.......
right......!
maybe in a year or two..........
regards ga-ga
Alex Buchanan
Well-known member
Not at all! Glad to help out any way I can!
Alex Buchanan ([email protected])
Montreal, QC, Canada
http://www.bh.qc.ca
--
Alex Buchanan ([email protected])
Montreal, QC, Canada
http://www.bh.qc.ca
colin walker117736
Well-known member
Hi EJN,
At the moment the code is residing in Matlab but when I iron out the problems I will output some C code and release something.
On the sharpness, the algorithm has different settings I can post other samples at different settings ie smoother or sharper but note the program is producing sharp images but not adding halo's, noise and colour shift artifacts like conventional USM.
The other thing to note is the 3D feel the sharpness gives the image, this would be impossible to reproduce with USM (See my reply to IanR for more info)
Feel free to mail me some of your images I will be happy to process for you.
Colin
At the moment the code is residing in Matlab but when I iron out the problems I will output some C code and release something.
On the sharpness, the algorithm has different settings I can post other samples at different settings ie smoother or sharper but note the program is producing sharp images but not adding halo's, noise and colour shift artifacts like conventional USM.
The other thing to note is the 3D feel the sharpness gives the image, this would be impossible to reproduce with USM (See my reply to IanR for more info)
Feel free to mail me some of your images I will be happy to process for you.
Colin
colin walker117736
Well-known member
Hi Ga-Ga,
Yes, just a simple one step resize saved to jpg and posted on the forum.
Colin
Yes, just a simple one step resize saved to jpg and posted on the forum.
Colin
colin walker117736
Well-known member
Hi Ian,
Thanks for the comparison, your image looks good.
A couple of points:-
Your image when compared to mine seems less saturated my image has more vibrant colour's greens etc.
My image has more fine detail on very close inspection, and if you look at the background trees and the drive in the middle of the image it is much more defined than in your image.
To my eyes my image has more of a 3D feel.
I feel my process will produce sharp images but without emphasizing noise, adding colour shifts, halos and other unwanted image damaging USM artifacts.
If you want me to run my process over any other images let me know, I would appreciate your comments.
Colin
Thanks for the comparison, your image looks good.
A couple of points:-
Your image when compared to mine seems less saturated my image has more vibrant colour's greens etc.
My image has more fine detail on very close inspection, and if you look at the background trees and the drive in the middle of the image it is much more defined than in your image.
To my eyes my image has more of a 3D feel.
I feel my process will produce sharp images but without emphasizing noise, adding colour shifts, halos and other unwanted image damaging USM artifacts.
If you want me to run my process over any other images let me know, I would appreciate your comments.
Colin
ianR
Veteran Member
Hi Colin
I agree with you, what you've done there is remarkable, especially as you've not applied sharpening! Are you experimenting with bicubic spline?
I'd be very interested in seeing a comparison with anything, but I can already see that yours are better.
Just keep up the good work and let us know when it's ready.
PS have you tried the program of Aruzinsky? It uses the Xin Lu algorithm. (I'm pretty sure your not using that as it doesn't have that look). Very interesting program, I'll find it for you if you're interested.
All the best
Ian
6900
I agree with you, what you've done there is remarkable, especially as you've not applied sharpening! Are you experimenting with bicubic spline?
I'd be very interested in seeing a comparison with anything, but I can already see that yours are better.
Just keep up the good work and let us know when it's ready.
PS have you tried the program of Aruzinsky? It uses the Xin Lu algorithm. (I'm pretty sure your not using that as it doesn't have that look). Very interesting program, I'll find it for you if you're interested.
All the best
Ian
--
6900
ga-ga
Senior Member
Colin -
I just compared to a lanczos resize in irvanview to the same size and agree yours has a noticible improvement and I agree with the 3d effect and I think it is better on distant trees blur........
Is development of this your job - or a personal thing?....
what application do you see it in.....
and can't the same process be used in a sharpening process as opposed to a resize?.......
regards ga-ga
I just compared to a lanczos resize in irvanview to the same size and agree yours has a noticible improvement and I agree with the 3d effect and I think it is better on distant trees blur........
Is development of this your job - or a personal thing?....
what application do you see it in.....
and can't the same process be used in a sharpening process as opposed to a resize?.......
regards ga-ga
Pieter Gordebeke
Leading Member
Not at you, if that's what you were thinking. I was just trying to express my opinion that it is essential to understand the basics of photography if one is to get good results out of a digicam that allows full manual control - such as your 602 and my 6900. Having read most of the posts in the last few days about softness and bad focusing from the 602, I'm inclined to conclude that some people would have been better off staying with their fully automatics (cameras, not machine guns).
When I say I won't point the finger, I have two (good) reasons:
1. I'm 27 years old and therefore a rookie compared to those with decades of experience and thousands of shots to back it up. I would like to learn from them in these forums - I already have -, but I'm afraid they will refrain from sharing their knowledge if the same "issues" are discussed over and over again.
2. I don't know for a fact if these people's complaints and frustrations are really the result of ignorance and/or poor technique. Maybe they just don't RTFM... but that was a different thread.
colin walker117736
Well-known member
Hi Ga-Ga,
I just developed this to help maybe towards a job, but more in curiosity why nobody has looked at quality downsizing.
Colin
It would be nice to have a Job!
I just developed this to help maybe towards a job, but more in curiosity why nobody has looked at quality downsizing.
Colin
colin walker117736
Well-known member
Hi Ian,
Don’t think sharpness is always manufactured, look at the world has it had USM applied to it?
OK don’t answer that I think I have dug a hole for myself
I have tried SAR that author is a very clever chap, and again we have here another example of someone concentrating on upsizing rather than downsizing (As you know SAR's Xin will not downsize) Lanczos will but as you move up from 10-64 you will get horrible ringing effects introduced into your images.
If any one wants there images processed just drop me a mail, my process is only as good as the info fed into it, I will post a Canon 1ds image downsized it will amaze you with quality and detail 10000x more detail than Lanczos.
PS. No, to the Cubic Spline question.
Colin
Don’t think sharpness is always manufactured, look at the world has it had USM applied to it?
OK don’t answer that I think I have dug a hole for myself
I have tried SAR that author is a very clever chap, and again we have here another example of someone concentrating on upsizing rather than downsizing (As you know SAR's Xin will not downsize) Lanczos will but as you move up from 10-64 you will get horrible ringing effects introduced into your images.
If any one wants there images processed just drop me a mail, my process is only as good as the info fed into it, I will post a Canon 1ds image downsized it will amaze you with quality and detail 10000x more detail than Lanczos.
PS. No, to the Cubic Spline question.
Colin
ga-ga
Senior Member
just checkin!.......
yeah!.....
understandable.........!!
Its probrably bound to be a bit of everything......
ga-ga
ga-ga
Senior Member
Hayalujah!.....
why not.......
give it a shot.......
how will you publish it?........
ianR
Veteran Member
Hi colin
Well now you've really got my curiosity aroused. I'm glad you've tried Aruzinsky's program and I agree, it is a bit clunky and designed to resample up, but impressive nonetheless. I'm glad you've tried B-Spline too.
Whatever it is you're doing, please, please keep at it because I'm sure there's a market for it particularly as a Photoshop plug-in. Photoshop is pretty awful at downsizing IMO, although I note 7 is better than 6. Creating thumbnails for the web gives the game away: a reasonably sized thumbnail with an average quality can be 40kb in Photoshop 6 (maybe 25 in PS7). The same thing in EZthumbnails or Photobrush will look better at 9kb or less.(Photobrush is really good too. Up and down. ) Incredible that such an expensive program is really weak in that area and most PS users don't even try something else.
You'll be doing us all a favour if you can make images look better. I hope you can keep the compression down though.
Keep in touch. I'll try to tweak out a tricky image to send you.
Yes, post the 1DS sample and one from the Foveon. I've noticed it doesn't look quite the same when resampled.
All the best
Ian
6900
Well now you've really got my curiosity aroused. I'm glad you've tried Aruzinsky's program and I agree, it is a bit clunky and designed to resample up, but impressive nonetheless. I'm glad you've tried B-Spline too.
Whatever it is you're doing, please, please keep at it because I'm sure there's a market for it particularly as a Photoshop plug-in. Photoshop is pretty awful at downsizing IMO, although I note 7 is better than 6. Creating thumbnails for the web gives the game away: a reasonably sized thumbnail with an average quality can be 40kb in Photoshop 6 (maybe 25 in PS7). The same thing in EZthumbnails or Photobrush will look better at 9kb or less.(Photobrush is really good too. Up and down. ) Incredible that such an expensive program is really weak in that area and most PS users don't even try something else.
You'll be doing us all a favour if you can make images look better. I hope you can keep the compression down though.
Keep in touch. I'll try to tweak out a tricky image to send you.
Yes, post the 1DS sample and one from the Foveon. I've noticed it doesn't look quite the same when resampled.
All the best
Ian
--Hi Ian,
Don’t think sharpness is always manufactured, look at the world has
it had USM applied to it?
OK don’t answer that I think I have dug a hole for myself
I have tried SAR that author is a very clever chap, and again we
have here another example of someone concentrating on upsizing
rather than downsizing (As you know SAR's Xin will not downsize)
Lanczos will but as you move up from 10-64 you will get horrible
ringing effects introduced into your images.
If any one wants there images processed just drop me a mail, my
process is only as good as the info fed into it, I will post a
Canon 1ds image downsized it will amaze you with quality and detail
10000x more detail than Lanczos.
PS. No, to the Cubic Spline question.
Colin
6900
colin walker117736
Well-known member
Ian,
Don’t get me started on Foveon, but this is the best thing to come to digital photography in a long time, Sigma's implementation is good but just wait a year and see what happens
I have tried my solutaion on the sigma's images and the results are very good (better than Bayer) but I doubt I would be able to post the images on dpreview:-(
I look forward to receiving your images, keep in touch via my e-mail.
BTW my solution will also upsize as well, and yes it keeps the sharpness but takes over 2GB of memory to process a 3MP image hummmmm.
Colin
Don’t get me started on Foveon, but this is the best thing to come to digital photography in a long time, Sigma's implementation is good but just wait a year and see what happens
I have tried my solutaion on the sigma's images and the results are very good (better than Bayer) but I doubt I would be able to post the images on dpreview:-(
I look forward to receiving your images, keep in touch via my e-mail.
BTW my solution will also upsize as well, and yes it keeps the sharpness but takes over 2GB of memory to process a 3MP image hummmmm.
Colin
Cameron43
Forum Enthusiast
I take it you dont have canals where you live...LOL the whole of the UK has a comprehensive network of them, they used to be the main method of transporting most of the goods around the Uk in the old days.
Mostly used for pleasure these days, the craft that use them are mainly narrow boats and are specially built to navigate the narrow waterways (usually steel hulls) especially some of the very narrow tunnels etc. as you say they are similar to a narrow house boat, and many enthusiasts live on them all the time, they are surprisingly spacious, you can hire them for holidays which I've done myself a few times and is definately most enjoyable especially as there are quite a lot of good pubs/restuarants situated right on the side of the canals. or very close by.
Cameron
Thanks for your advice ga-ga.
Keyboard shortcuts
- f
- Forum