Magnifying a shrunken image --- without using imageData

[David Burgun]

Hi,

Well maybe I misunderstand the problem then!

In my case I have images that are around 1500 x 500 pixels  in size. 
I show a preview of this in a seperate image which is scalled so the 
width is 250 pixels and the height adjusts depending on the aspect 
ratio. From re-reading the original post,  Roger wants to take a 
portion of the smaller preview image and scale it up. If you scale 
from the preview, then a lot of data has already been lost, so he 
wants to get the data from the original image, scalled from the the 
preview. If you take the data from the preview and then scale it, it 
will become pixelated, the extent of this pixelation will obviously 
depend on the size of the original and the size of the preview. In my 
case the loss was just too great, and anyway, it's still much better 
to scale from the original if you are looking for the best quality.

All the Best
Dave



>I tried it - works fine. The original imagedata is contained in the
>copied image - so no problem with pixil loss.
>
>-----Original Message-----
>From: use-revolution-bounces at lists.runrev.com
>[mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of David
>Burgun
>Sent: Tuesday, August 30, 2005 10:44 AM
>To: How to use Revolution
>Subject: RE: Magnifying a shrunken image --- without using imageData
>
>Hi,
>
>I think the problem is that it will still be very pixelated, it was
>when I was trying to do something similar. I came to the conclusion
>that the only way to do this properly was to work from the original
>image and scale everything to suit. It works great using my external,
>but I think it should work for what Roger wants using the technique I
>described earlier.
>
>All the Best
>Dave
>
>>Expanding on Xavier's idea - you could also copy the image into a
>group.
>>
>>The group would need to have its locklocation set to true, and have
>>vertical and horizontal scrollbars.
>>
>>After you copy the image, set its width and height to whatever
>>magnification you want. The only parts visible will be inside the
>group,
>>and you can use the scrollbars to move around to different parts of the
>>image.
>>
>>-----Original Message-----
>>From: use-revolution-bounces at lists.runrev.com
>>[mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of MisterX
>>Sent: Tuesday, August 30, 2005 10:24 AM
>>To: 'How to use Revolution'
>>Subject: RE: Magnifying a shrunken image --- without using imageData
>>
>>Roger,
>>
>>clone the image, then use the crop command. Then you can zoom it...
>>
>>that should do the trick...
>>
>>cheers
>>Xavier
>>
>>>   -----Original Message-----
>>>   From: use-revolution-bounces at lists.runrev.com
>>>   [mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of
>>>   Roger.E.Eller at sealedair.com
>>>   Sent: Tuesday, August 30, 2005 15:08
>>>   To: How to use Revolution
>>>   Subject: Magnifying a shrunken image --- without using imageData
>>>
>>>   I have an image that is larger than the screenRect. I scale
>>>   it to fit the window. Now I want to magnify a portion
>>>   (100x100 pixels) in another image object.
>>>
>>>   The problem is that if I put the text of (a portion of the
>>>   imageData) into the magnified image, it is VERY pixelized. I
>>>   need to access the original full resolution image for the
>>>   magnified area.
>>>
>>>   How can I accomplish this without using an external? Thanks
>>>   for any suggestions.
>>>
>  >>  Roger Eller <roger.e.eller at sealedair.com>