Hello Bernd,
I tried and tried but could not get the script to work.
It produces an image with half the content widthwise, and I am still
trying to get it to copy every other complete line...
Here is a typical source image:
http://revcoders.org/resources/temp.png
You can see the obvious interlacing, as the dolphin was saying "yes"
to the question "would you like a fish?"
I am attempting to copy every other line to a new image, then set the
width to half as well so the picture maintains its aspect ratio.
Does your script work with that image?
Thanks!
On Nov 12, 2007, at 3:34 PM, BNig wrote:
Hi Josh,
make a stack with 2 images, call them "P1" and "P2"
load a picture in the inspector into image "p1"
set the width and height to 140 in the inspector
make a new button
paste this script into the button
on mouseUp
put the width of image "P1" into theImagWidth
put the height of image "P1" into theImageHeight
put the imagedata of image "P1" into theDataToWorkon
if theDataToWorkon = "" then exit mouseUp
put length (theDataToWorkon) into HowLong
put empty into destImageData
-- one Pixel = 4 Bytes = 4 chars
put theImagWidth * 4 into OneRowOfImage
put theImageHeight into soManyPixelRows
put 0 into theCounter
repeat with i = 1 to (HowLong - OneRowOfImage) step
(OneRowOfImage*2)
put char i to (i + OneRowOfImage-1) of theDataToWorkon after
destImageData
end repeat
set the width of image "P2" to theImagWidth
-- watch out for images with uneven heigths
set the height of image "P2" to (theImageHeight/2)
set the imagedata of image "P2" to destImageData
end mouseUp
this should give you in "P2" an image half the height of P1 with every
second line of the original image.
it works for me, attention, almost no error checking in here,
it is important to have the width and height correct otherwise the
image
will be distorted
just curious: why do you want to eliminate every second line of an
image?
hth
Bernd
Josh Mellicker wrote:
Here's one for the image processing gurus out there:
How difficult is it to take an image, and create a new image
containing every OTHER line from it (e.g., just the odd lines) so the
resulting picture is half the height?
Once you knew the width of the image, isn't it just a loop that
copies tWidth pixels, then skips the next tWidth, and so on?
Thanks!
_______________________________________________
use-revolution mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your
subscription preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
--
View this message in context: http://www.nabble.com/deleting-every-
other-line-in-an-image-tf4793676.html#a13716667
Sent from the Revolution - User mailing list archive at Nabble.com.
_______________________________________________
use-revolution mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your
subscription preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
_______________________________________________
use-revolution mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
