Resizing an image with changes in quality factor

Hello
I have a requirement where in a image uploaded by the System has to create 2 new images of different sizes and changing the quality factor.
The System is a web based interface with jsp as the presentation layer and application server as the middle layer.
Can anybody suggest something for the same.
Thanks

See the Java Advanced Imaging API: http://java.sun.com/products/java-media/jai/

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Hi Tracy,
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I am creating a folder design for work...
So this is printed? How large? Pixels are not a unit-of-measure for print.
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So, say you want a 3in x 4in picture. That would mean your original would have to be at least 900px X 1200px. (ie 300ppi x width, 300 ppi x height)
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I have tried changing the ppi to 72 and to 300, I have also tried resizing all in one go
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2. Imported the jpeg image and adjust the time from 5 seconds to about 2 seconds.
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I have been to iMovie help and noticed this comment:
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Message was edited by: Guy Burns

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Bridge Exports Changes Resolution from 300 to 72 dpi, resizing my image

I like to use Bridge (CS5) to export my photographs for printing, and frequently I will use the Export feature to resize the images (e.g., 5x7 vs full size), but every time I export it recharacterizes the images as 72 dpi, vs the 300 dpi I prefer.
Consistent with some of the previous postings (~2 yrs ago) I have seen on this topic the exported images are now "sized" much bigger (29"x20" for what should have been ~5"x7"), and hence expectantly I haven't lost any resolution, but it's aggrevating to have the dpi changed.
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Can anyone tell me how to export without having the dpi changed?
Can't find any other settings to change and just having tested it I can confirm that it sets ppi (it is pixels per inch -ppi- for a digital file which is made from pixels and dots per inch -dpi- from the ink dots of a print ) to 72.
And while I'm at it, can anyone confirm that I'm not loosing image resolution?
You already stated yourself that you did not loose pixels, therefor the size of the files stays the same. It is just a mater of figures. 300 ppi means a larger concentration per inch and 72 pixels per inch means a smaller concentration of pixels per inch. Given the same amount of pixels for both settings this means a smaller image dimension for 300 ppi and a larger image dimension for the 72 ppi.
300 ppi is some 'magic' number from printed press, but it really depends on the need of the job related printing machine. If you have a small image and need to look closely it should have a larger concentration per inch to reflect its sharpness.
However theoretically you would almost have the same visible quality when printed on 72 at billboard sizes. That's because you always have a large distance between your eyes and the bill board. If you look closely you will see the dots (because the billboard is a product of ink dots…) but of course it is not meant to study at that close range.
The same is for judging sharpness on your computer. Ideally you do so at 100 % for correct judgement at real size pixels. But in reality there will be almost no situation you will study a print at that same distance
Any thoughts on why these would be different? And am I fretting over things unncessarily?
Only guesses, the use a different algorithm or calculation scheme, in my case I tried a Canon Raw (converted to DNG) without any ACR settings then the basics applied and found that Bridge export jpeg 11 creates larger files then using PS.
But there are some other concerns I have and that certainly would make me fretting in use of export module:
First of all I almost never use it, merely in this cases for testing, because using the menu tools give a shortcut to Photoshop / Batch and inhere I have created several dedicated resizing and resaving actions that also places the files in preset folders.
But with this small test I found out that
a: it changes ppi to 72 ppi, not a very big deal but I did not asked for it nor did I wanted it.
b: it converts my Adobe RGB color space to sRGB and I certainly did not want that without my explicit wish for this conversion, so this is more then a bit worrying to my concern.
c: it seems to apply a sharpness that I certainly did not want to happen without my knowledge, and this rules the use of the export module out completely.
Since I only tried a DNG file without settings or retouch/developing in Photoshop the jpeg generated by PS was not very sharp. This makes sense to me because I have set my basic ACR to apply sharpening only to preview. There are a lot of different sharpening theories around but I use one in PS itself. So I was a bit shocked to learn that the export module did all those for me unwanted and not adjustable settings putting me completely out of control…
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The great thing of the latest PS CS6 action pallet is the extension with a so called 'insert conditional' that let's you create an 'if - then else' action for both landscape and portrait resizing actions so you don't need the 'constrain to fit' or 'fit image' option. Just once create an action for both resizing dimensions and then create a new action with insert conditional. choose If image is landscape play action…. / else play action….
It is really a very productive way. I have a lot of actions (organized in sets for better overview) and even one that creates 4 different sizes in 4 different folders using 1 go in Bridge

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Message was edited by:
cassio.marques

I know what you mean! This happened to me as well!
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I have a graphical texture wrapped around a 3D cylindrical shape. Think "Coke bottle". When I select "unlit texture" in the properties panel, the image render is low quality.
See this link for a similar issue.
http://forums.adobe.com/message/5093470
As the openGL render was good enough for the person posting the question, I'd like to retain quality from my texture to the final render.
I'm using PS CS6.
Thanks in advance.

The long and short version is: Use a 3D program. Blender is free, after all.
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I have been reading about how to best resize image in PS CS4/CS5. I've read that you should increase the size of a image in increments and I’ve also read that you should resize using the bicubic smoother setting in PS.
The image that I would like to resize is 5W x 7H and resolution of 150. I would like to print this image at 30W x 40H on a HP Designjet 5500ps.
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No matter which method you used, scaling up a photo 5 times is going to look very good.
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Resizing an image with changes in quality factor

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