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Automatic interpolation / smoothing in TV?? [message #85533]

Thu, 15 August 2013 02:14

Jakob
Messages: 2
Registered: August 2013

Junior Member

Hello,

I would like to display an image with few pixels. When I use the TV command (either directly or through cgimage) I find the image is being "blurred", as if each pixel was being broken up in 8x8 cells and then values were being interpolated. For my specific purpose I want each pixel to have sharp edges.

I've searched the manuals but was not able to locate the reason for this behavior. I could plot each pixel separately using squares of appropriate size, but this seems unnecessarily clumsy?

Any hint on what I am missing would be greatly appreciated.
CJ

pro example

dens = [[7.0, 190.0, 391.0, 166.0, 6.0, 0.0],[0.0, 11.0, 63.0, 92.0, 9.0, 1.0],[0.0, 0.0, 2.0, 1.0, 0.0, 0.0]]

set_plot,'PS'
device, filename='example.ps', /color, /landscape

tv, dens, xsize=20000, ysize=10000

device, /close

end

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[Message index]

		Automatic interpolation / smoothing in TV?? By: Jakob on Thu, 15 August 2013 02:14
		Re: Automatic interpolation / smoothing in TV?? By: David Fanning on Thu, 15 August 2013 05:00
		Re: Automatic interpolation / smoothing in TV?? By: Jakob on Thu, 15 August 2013 06:02
		Re: Automatic interpolation / smoothing in TV?? By: Phillip Bitzer on Thu, 15 August 2013 09:13

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