Increasing pixels and maintaining detail

CS
Posted By
carl_sutherland
Mar 6, 2004
Views
339
Replies
11
Status
Closed
There was at least one and probably more threads on this, but I simply can not find them through search so help please.

I have an image that is 146wx219h pixels. The document size is 4wx6h inches and resolution of 36.5 pixels/inch. I would like to enlarge it so it shows on a monitor about 600 pixels high with a resolution that shows well.

I remember something about a 10% increase per time with constrain proportions and resample image both checked I believe. I seem to remember there was a simple way to do this repeatedly until final size was obtained but I do not remember what it was nor can I figure it out this afternoon.

I would appreciate any guidance.

Carl

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J
jhjl1
Mar 6, 2004
You are asking for an awful lot here. You are almost wanting to triple the size and chances are you will not get a usable image by doing this. The increase by 10% trick will work on some images better than others but I have never had any luck trying to increase by more than about 30 or 40% and even then the image was not nearly as good as the original.


Have A Nice Day, 🙂
James Hutchinson
http://www.pbase.com/myeyesview
http://www.myeyesviewstudio.com/
wrote in message
There was at least one and probably more threads on this, but I simply
can not find them through search so help please.
I have an image that is 146wx219h pixels. The document size is 4wx6h
inches and resolution of 36.5 pixels/inch. I would like to enlarge it so it shows on a monitor about 600 pixels high with a resolution that shows well.
I remember something about a 10% increase per time with constrain
proportions and resample image both checked I believe. I seem to remember there was a simple way to do this repeatedly until final size was obtained but I do not remember what it was nor can I figure it out this afternoon.
I would appreciate any guidance.

Carl
J
jhjl1
Mar 6, 2004
BTW the print size and ppi are irrelevant to what you are trying to accomplish.


Have A Nice Day, 🙂
James Hutchinson
http://www.pbase.com/myeyesview
http://www.myeyesviewstudio.com/
wrote in message
There was at least one and probably more threads on this, but I simply
can not find them through search so help please.
I have an image that is 146wx219h pixels. The document size is 4wx6h
inches and resolution of 36.5 pixels/inch. I would like to enlarge it so it shows on a monitor about 600 pixels high with a resolution that shows well.
I remember something about a 10% increase per time with constrain
proportions and resample image both checked I believe. I seem to remember there was a simple way to do this repeatedly until final size was obtained but I do not remember what it was nor can I figure it out this afternoon.
I would appreciate any guidance.

Carl
W
Wayne
Mar 6, 2004
In article ,
says…
I have an image that is 146wx219h pixels. The document size is 4wx6h inches and resolution of 36.5 pixels/inch. I would like to enlarge it so it shows on a monitor about 600 pixels high with a resolution that shows well.

It must not be an option to scan it again, but that would be the best thing to do. If you scan a 4 inch height at 150 dpi, then you would create 600 pixels of real detail (4 inches x 150 dpi = 600 pixels). There is really no other way to do that same job. The detail can only come from the original photo.


Wayne
http://www.scantips.com "A few scanning tips"
GW
greg_wallis
Mar 7, 2004
Has anyone on this forum used the plug inn "genuine fractals"…..supposedly can increase some pictures by 700 percent. Read a reasonable review in a mac or photomag but does anyone have any first hand experience with it?.

cheers
greg
BH
Beth_Haney
Mar 7, 2004
I asked this same question a couple of years ago, and I think it depends on who answers! At the time, someone provided a link to a site where GF was compared with Adobe’s bicubic interpolation, and it was a tie. Today I found a site that said pretty much the opposite. There is a demo version of it that’s good for 20 individual uses. How about you downloading and testing and giving a review for the rest of us!! 🙂
CS
carl_sutherland
Mar 7, 2004
Beth,

I found what I think we are talking about at <http://www.lizardtech.com/> but I can not find any demo. Am I just missing it or am I in the wrong place?

I am having a little trouble with my mail. I wrote you privately yesterday. Did you receive it?

Thanks

Carl
MM
Mac_McDougald
Mar 7, 2004
I’ve used it.
Marginally better than Photoshop interpolation, maybe, for some images.

GF states up front that it does best on files of 10MB and higher, uncompressed, so it doesn’t even pretend to do anything with low rez files.

Mac
BH
Beth_Haney
Mar 7, 2004
No, Carl, I didn’t get a message from you. I thought nobody loved me! 🙂

Here’s a link to the page where the trial version of GF is located. It is kind of buried – you have to go to downloads and then find trial versions. I don’t think they want to encourage people!

< http://www.lizardtech.com/download/dl_options.php?page=trial s>
JF
Jodi_Frye
Mar 7, 2004
Beth, check your mailbox 🙂
BH
Beth_Haney
Mar 7, 2004
Thank you Jodi and Chuck for making me feel loved. 🙂

But back on the subject of pixels… I was trolling this morning and came across one site that recommended a 1% to 5% max for upsampling. I haven’t tried it, but I know 10% is the number we’ve been tossing around on this forum. The next time I need to create new pixels, I think I’ll try it and see if the results are any better.
JF
Jodi_Frye
Mar 7, 2004
hmmmm, i think that it would be tough to figure if this works….seems it’s the printed output that matters….and who has the time and ink for that ??? Ohhhh Brent….where are you honeybun 😉

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