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Re: Why interleaving in image?? [message #93617 is a reply to message #93613]

Tue, 06 September 2016 21:52

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 9/6/16 2:31 AM, Sanu wrote:
> Why we have to use interleaving in image in IDL.
> Please tell me meaning of this..How image size is different from image dimension.
>
> imageSize = imageInfo.dimensions
> image = READ_IMAGE(file)
> imageDims = SIZE(image, /DIMENSIONS)
> interleaving = WHERE((imageDims NE imageSize[0]) AND (imageDims NE imageSize[1])) + 1
> PRINT, 'Type of Interleaving = ', interleaving
>

When there are many channels to an image, you end up with a
3-dimensional cube of images instead of just a single m by n array. But
this gives three choices for the dimensions when you have a cube: m by n
by nbands (band sequential), m by nbands by n (band interleaved by
pixel), or nbands by m by n (band interleaved). These simply indicate
the order the bytes are stored (which can effect performance depending
on how you intend to access the data).

Mike
--
Michael Galloy
www.michaelgalloy.com
Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)

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[Message index]

		Why interleaving in image?? By: Suresh Negi on Tue, 06 September 2016 01:31
		Re: Why interleaving in image?? By: Michael Galloy on Tue, 06 September 2016 21:52
		Re: Why interleaving in image?? By: Suresh Negi on Wed, 07 September 2016 03:15

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