March 4th, 2009, 10:40 AM #1
Expanding Photos Without Losing Resolution ?
Now that I have a 22" monitor in Portrait Mode, how can I expand Photos and Pics without losing reolution?
Do I need a Vector Graphics program?
What is the simplest/cheapest program(s) for expanding graphics?
March 4th, 2009, 11:07 AM #2
What do you mean by losing resolution? Do you mean the picture being pixelated? Because when you expand a picture you actually gain resolution.. Well as far as I know, there is no way to have your pictures expanded and not look blury, because you simply do not have enough data to make a nice sharp and big picture.
With that said, some programs are better at making your pictures look good than others. Have a look at GIMP for starters.i5 3750 | ASUS P75 | GTX560Ti | 8gb Corsair Vengence
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March 5th, 2009, 09:48 PM #3
Yes I do mean without getting blurry.
There must be some graphics SW that "fills in" the pixels according to an algorithm to offset the otherwise loss of distance or larger size of pixels.
Are we looking at a $600 + proggie?
March 5th, 2009, 09:58 PM #4
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For image viewing and editing, you simply need an app supporting bicubic, Lanczos, or similar interpolated resizing. Still, don't expect miracles.
Bicubic interpolation - Wikipedia, the free encyclopedia
Lanczos resampling - Wikipedia, the free encyclopedia
Anyway, you are in luck. Many free and open source graphics apps support such scaling methods. I generally recommend Paint.NET for basic work and GIMP for more advanced work.
Paint.NET - Free Software for Digital Photo Editing
GIMP - The GNU Image Manipulation ProgramRobert Richmond | Infinite perceptions. One reality.
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March 6th, 2009, 08:40 AM #5◄ it is what it is ►
March 8th, 2009, 11:13 PM #6
I'll check them all.
February 14th, 2011, 09:02 PM #7
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February 17th, 2011, 02:36 PM #8
1st set your monitor to the highest resolution that it supports or at least to the "native" resolution.
Fixing Unsharp images
Back "in the day" AG [Aperature Grill] monitors were hot for shutterbugs.
Where do you get the photo in the first place?
Digital Camera or, are you scanning Film Photos ?
Though I've printed a ton from Digital Cameras, my main expertise is in Film.
I have parked my 2 Pentax 35mm's in favor of decent digital cameras, especially when Panasonic introduced the Leica Glass Lens camera with mechanical gyro for image stabilization.
Silver Halide Film Photos are reputed to contain a max of 300 dpi, I think this is a general "rule of thumb but not the whole story.
The lower the ASA means the film emulsion is "thicker" and takes longer to expose, hence a finer grain and more dpi.
On Film photos, personally I never go above 600 dpi, slides or negatives 1,200 dpi seems ok for 8x10's
Using ASA 400 film will have a lower resolution than ASA 25.
[ASA 8 Ortho B&W has the finest grain I know of]
I've taken "wallet" photo's and enlarged them to 5x7 and sometimes though rarely 8x10.
Slides and Negatives or 2-1/4" or larger formats are a different item entirely.
Some sites suggest as high as 3000 dpi for film prints, talk about Huge file sizes !
My high end Scanner is a HP Professional, 48 bit.
It came with a software that prints 2 "calibration" pages, one in color and one in B&W.
The graduations are extremely subtle and the dots are bout 1 mm in dia this calibrates the scanner to the printer.
Here's a site that gives resolution vs file size and max print size & quality results.
Resolving Scanning Resolution
The best, IMHO, film has always been Fuji, here's the current list of Consumer Color Negative Films
Popular Interpolation Methods
Both bicubic and bilinear interpolation result in a blurred image, especially when upsampling.
# Bicubic is the slowest but produces the best estimation of new pixel values.
# Bilinear is faster than bicubic, but does a poorer job.
A Plug-In Genuine Fractals 6 1 $160.00 for Photo-Shop Elements 6/7 $40+ is well reputed in the photo community.
You can get better results when upsampling by increasing the image size in small increments rather than one extreme step.
This technique is referred to as stair interpolation.
One advantage to using stair interpolation is that it will work on 16-bit mode images and it requires no additional software other than a standard photo editor.
The concept of stair interpolation is simple: rather than using the image size command to go directly from 100% to 400%, you would use the image size command and only increase, say, 110%. Then you would repeat the command as many times as it takes to get to the size you need. Obviously, this can be tedious.
Qimage is said by some to be a great software $35.00 Qimage 2010.208
I used Corel Draw 8 in the old days, it was $450 and I stole it from Buy.com for $65
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