[Javascript] Resizing images client-side

[Terry Riegel]

I look at it this way. Educating users "isn't" going to happen.  
Unless you only want a limited number of users that you can hold  
their hands through the process. And then when they do it the next  
time they will need you to step them through it again. Also... On the  
educate users front be prepared to explain why some files are bigger  
than others even though they are both 2 megapixel files. Also  
remember there are a lot of graphics programs out there. Also some  
users will ask you for a deeper explanation of what DPI means and why  
by 4x6 print at 300DPI is to big, but a 8x10 at 10 DPI is ok. Many  
users may also need help getting their scanner working. Also your  
users will want to know the exact steps for how to resize their  
images using SuperCool Photo Program Deluxe version 3.7 on Windows 98.

Ok course I am being facetious as this is why you are looking for a  
client side solution in the first place. I look at it this way you  
only really have control of the server. The user coming in may or may  
not have what is needed to do client side processing. So in this case  
I would do it on the server.

Also I think it is worth noting that sites like youtube are "working"  
because they are agnostic to what you send them. They don't really  
care. You can send a flash video, a quicktime movie, or a Real video,  
or Window Media. They place the burden for making things work on the  
server (something they have complete control of).

Just my 2 cents.


Terry



On Jul 12, 2007, at 8:00 AM, tedd wrote:

> At 5:42 PM -0400 7/11/07, Terry Riegel wrote:
>> Ok I see, to save bandwidth then. Because if you resize at the  
>> server you can dump the original file. The only thing lost is the  
>> user spent a little more time getting it to you.
>>
>> Terry
>>
>
> Terry:
>
> Yes that, but it's a bit more. One, not only does the user tie up  
> their bandwidth, which sometimes the user blames on the site, but  
> the server receives a hit in two ways. One, if has to spend the  
> time and memory to receive the large file, and two, it then has a  
> larger file to reduce.
>
> If the user would trim their files to begin with, then there  
> wouldn't be a problem. However, educating users is another subject.
>
> Cheers,
>
> tedd
>
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