Here are simple directions and I will explain why after words; SEND IMAGES IN A HIGH RESOLUTION IF POSSIBLE. I will adjust them and display them at a smaller file size, attempting to maintain the best resolution that is practical.
Why send them at a large size?----The large size will allow them to be printed in the bulletin at high resolution.
Why do I downsize them for display?-
â If I would get 500 entries each with 4 images and they were each 10,000 KB that would be a total of 20 GB added to the wiki files. Bandwith is expensive! We already pay much more than a normal website to accommodate the enormous content of the wiki
â Secondly the number of bites on a page means too high a size prevents people on dial-up from opening the page. Yes there are lots of members with limited internet access.
Unfortunately the internet is a hodgepodge of various operating systems that miraculously get interconnected. Each entry will be treated fairly, but often that means displaying images at lower resolution than may be possible on your own devices. Often E-mail providers downsize images that are sent and the sender has no knowledge of that change. If you are displaying the Virtual Show on a large screen high definition television, then yes you may see graininess but it should be hardly discernible on the average moniter. Facebook, Twitter, etc. downsize most of the images sent through them.
----- Original Message -----
From: "Kenneth Walker" <kenww@astound.net>
To: iris-species@yahoogroups.com
Sent: Wednesday, February 26, 2014 9:22:31 AM
Subject: Re: [iris-species] Virtual Iris Show
I'm talking about the space taken up on the file system; these are high
quality JPEG. The images are 24 megapixels.
Ken
On 2/24/2014 9:08 PM, John Jones wrote:
> Ken,
>
> When you say your JPEGs are less that 10MB, do you mean the size of the JPEG fuel or the size when the JPEG is opened and decompressed.
>
> JPEG is a "lossy" compression algorithm and the amount of compression affects the quality of the resorted image. The higher the compression the smaller the resulting file and the lower quality the compressed image.
>
> John
>
> On Feb 24, 2014, at 7:52 PM, Kenneth Walker <kenww@astound.net> wrote:
>
>> Hi Bob,
>>
>> A couple points of image size:
>>
>> I have a high resolution camera and JPEGs are typically less then 10MB. Did you mean 10,000KB (same as 10MB) for a max file size rather than 10,000MB? "K" vs "M" makes a big difference.
>>
>> The size of a digital image is measures in pixels of width and pixels of height. Dots per inch is a display or print resolution. If you'll excuse an analogy, it's a bit like asking for gas and telling me your car uses 3 ounces per mile. I can't tell how much gas you need without knowing how far you are driving. I don't know how many pixels you'd like without knowing how big you might print the picture. This is why Photoshop puts resolution together with size in inches (or cm, etc) under the grouping of "Document Size"; when you print, you can't have one without the other.
>>
>> As a photographer it is easier for me if you decide on a range of reasonable pixels sizes.
>> â Suppose you want all photos capable of being printed with a size of 3 inches at 300 pixels per inch. 3 inches * 300 pixels per inch = 900 pixels, or 900 by 900 pixels for a square photo.
>> â Or maybe you expect your judges to use monitors at least 1200 pixels high. You might request that pictures be at least 1200 by 1200 pixels.
>> â Maybe you'd like the option to print some of the pictures across the cover of the AIS bulletin at a high resolution: 12.5 inches * 600 pixels per inch = 7500 pixels (although cameras for that size image cost tens of thousands of dollars; probably excessive for this contest).
>> Perhaps it would be reasonable to have something on the How to Enter page like "Images sizes should ideally be between 1200 by 1200 pixels and 3500 by 3500 pixels". Or whatever range seems good to you.
>>
>> Ken
>>
>>
>>
>>
>
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