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Seamless Tiling

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lmicha
Posts: 1
I am using a file size 1980 X 1320 and am checking the "seamless tiling" box under setting and am getting the following message. "Source image must have an integer aspect ration"

I don't know what this means, or how to deal with it, where to find it and where to put it. Please help me throught this mess.
Posted: August 25, 2011 12:10 pm   Details E-Mail
Ghislaine
Ghislaine

Posts: 3142
Filters: 270
Hi Imicha and Welcome to our community. smile;)

I'm not sure but I think that images must have the same width and height, as a square image for seamless tile. Personally, I usually work with 600 x 600 because it takes to long for the render when images are bigger than that. After, I use another software for making my ajustments on images.
visit https://gisoft.ca
Posted: August 25, 2011 12:55 pm   Details E-Mail
GMM
Moderator
Filter Forge, Inc
Posts: 3491
Quote
Ghislaine wrote:
images must have the same width and height


Not necessarily the same. To enable seamless tiling the ratio between the width and height must be an integer number. So a 500x1000 or a 2000x400 image will suffice.
Posted: August 29, 2011 3:02 am   Details E-Mail
SpaceRay
SpaceRay

Posts: 12298
Filters: 35
GMM has put a link to this HELP page of Filter Forge

http://www.filterforge.com/more/help/...lters.html

Quote
Filters that cannot be seamlessly tiled within an image with a non-integer aspect ratio are called discrete. The most obvious example of a discrete filter is a 2x2 checkerboard pattern based on the Checker component.

In order for a discrete filter to be seamlessly tiled, the aspect ratio of the source image must be integer. The aspect ratio is the ratio of the image width to the image height, for example an image with the dimensions of 400x200 pixels has an integer aspect ratio of 2, and an image of 300x200 pixels has a non-integer aspect ratio of 1.5. For vertically oriented images with the height greater than the width (for example 200x400 pixels), the width and height get reversed so that the ratio is always greater than 1


He has put this in this another thread that tells about this

http://www.filterforge.com/forum/read.php?TID=6863

AND best is descibed here and shown graphically

Image Processing Aspect Ratio Lab Report

http://www.efg2.com/Lab/ImageProcessi...tRatio.htm

Quote
Ghislaine wrote:
images must have the same width and height


This is not true as said by GMM is not needed that is the same size both sides

Quote
Kraellin wrote:
i believe it's if you divide one side of a source image by another and the result must be a whole number, not a fraction.

the 'aspect ratio' is the relationship of sizes (the ratio)of the width and length of an image, screen, monitor and so on.

and an 'integer' is basically, a whole number and not a fraction.
Posted: August 29, 2011 2:57 pm   Details E-Mail

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