Resizr Online Image Resizing FAQ - The five questions posted most recently:

Can you instruct me on how I can send the resized photo by email? What do I put in those boxes?

Tue, 11 Mar 2008 04:48:00 GMT

For the email addresses, put your email address and the address where you want the resized image sent.

The message to the recipient is an optional field that lets you send a personalized message to the person you're sending the photo to.

The "password" field is a password that you create.� In order to prevent abuse of the system, Resizr validates your email address before sending the photo out.� By providing a password (and re-typing it to make sure you typed it right), resizr doesn't have to re-validate your email address every time you want to send a photo.

What is Unsharp Mask?

Fri, 07 Mar 2008 07:00:00 GMT

To sharpen images, Resizr implements what is called Unsharp Masking. Basically, this technique makes images appear less blurry by enhancing the contrast of pixels near edges.

Resizr performs this operation after it has resized your image, so you will NOT see the sharpened version of the image immediately when you click the "sharpen" checkbox.

The three options you can set for unsharp mask are:

Amount: This is listed as a percentage, and controls how much darker and how much lighter the edge borders become. This can also be thought of as how much contrast is added at the edges.
Radius: This affects the size of the edges to be enhanced. Higher Radius values can cause halos at the edges, a detectable faint light rim around objects. Fine detail needs a smaller Radius, as tiny detail of the same size as the Radius width is lost. Radius and Amount interact; reducing one allows more of the other.
Threshold: Which controls the minimum brightness change that will be sharpened or how far apart adjacent tonal values have to be before the filter does anything. This lack of action is important to prevent smooth areas from becoming speckled. The threshold setting can be used to sharpen more pronounced edges, while leaving more subtle edges untouched. Low values should sharpen more because fewer areas are excluded. Higher threshold values exclude areas of lower contrast.

Generally, leaving these three options as they are set by resizr will work just fine. However, in some cases, you may benefit by experimenting!

There are a number of good tutorials on unsharp masking, and you may want to read them if you want more in-depth knowledge.

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I have a website and I want to put resizr in it. Can you help me?

Fri, 07 Mar 2008 06:44:00 GMT

Probably not.� Resizr is not available for license or sale.� However, I might be willing to make it easy for users to get images from your site to resizr and back to your site.

Resizr is not my job, it's a side project.� Therefore, my willingness to integrate with your site depends on the availability of my time, the size of your site, and whether you are willing to pay me for my time.

i need to implement the same system (resizr.com) as a part of the secure intranet system. Can you please email me the ti.php and resize.php or any other files related to the system. Thanks Pamela

Fri, 07 Mar 2008 06:37:00 GMT

Sorry, but the resizr code is not available for license or sale.

How do I crop a image that is on a website, not my computer?

Fri, 07 Mar 2008 06:36:00 GMT

You need to either download the image onto your computer or provide resizr with the URL of the image.

To find the URL of an image, you can usually right click the image and "view" the image.� The URL will be shown in your browser's URL box.� If you can't right click because you have a mac, I'm not sure exactly how to help you.

However, you can see if "How To Right Click on a Mac" helps.