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How can you make Analog TV lines on Photoshop

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  #1  
Old 10-06-2010, 07:38 AM
mozy mozy is offline
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How can you make Analog TV lines on Photoshop

Can anyone help?
How can you make Analog TV lines on Photoshop?

thank you!
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File Type: jpg lines.jpg (79.4 KB, 45 views)
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  #2  
Old 10-06-2010, 08:50 AM
mistermonday's Avatar
mistermonday mistermonday is offline
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Re: How can you make Analog TV lines on Photoshop

Mozy, there are a number of ways to create them, here is one method.

- Open the image to which you want to add the lines. The resolution of the image should 300 ppi for this example.
- Create a new document (Ctrl+N) and make the document 1 pixel wide by 4 pixels high at 72 dpi (yes that s microscopic). Zoom in (you may need to go to 1200%) to view the rectangle at a workable size. Select you Pencil tool from under the brush tool in the tool palette. The pencil will be 1/2 the size of the document. Set its color to black and tap on the top half of the doc to color it black. See attachment 3.
- Select All and go under the Edit menu and select Define Pattern and name it whatever you like.
- Now go back to your other open document and add a new blank layer above the background.
- Go under the Edit menu and select Fill. From the dialog box choose Pattern and then click on the triangle context menu to find the scan line pattern you just created. Click OK
- The layer should now be filled with scan lines (you may need to zoom in). Change the layer Blend Mode from Normal to Overlay. Adjust the opacity to get the strength you like.
- You may need to experiment with the scan line pattern document to get the size of line you want relative to the main image resolution or adjust the resolution of the main image.
I hope this helps.
Regards, Murray
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File Type: jpg Mozy Scan Lines MM.jpg (158.5 KB, 24 views)
File Type: jpg Mozy Scan Lines1 MM.jpg (189.2 KB, 46 views)
File Type: jpg Mozy Scan Lines 3.jpg (10.9 KB, 19 views)
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  #3  
Old 10-06-2010, 10:07 AM
freddie freddie is offline
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Re: How can you make Analog TV lines on Photoshop

It might also help to add just a bit of noise to your pattern layer. This way, instead of having straight lines across, the lines form a more pixellated/real effect.
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  #4  
Old 10-06-2010, 04:38 PM
mozy mozy is offline
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Re: How can you make Analog TV lines on Photoshop

Thank you very very much that is the exact technique that I was looking for Great!
I knew here someone would help!
Thank you both!
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  #5  
Old 10-06-2010, 06:58 PM
SZStudio SZStudio is offline
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Re: How can you make Analog TV lines on Photoshop

I use Pixel Bender plug-in in Photoshop, kernel Effect Canal Plus
Credits to Vincent Helwig

install first the plug-in (CS4 and CS5 only) from Adobe site
copy to txt file, change extension to .pbk
and place into
C:\Program Files\Adobe\Adobe Photoshop CS5\Pixel Bender Files

Quote:
<languageVersion : 1.0;>
kernel EffetCanalPlus
<
namespace : "“com.tsoin.asblog";
vendor : "Vincent Helwig";
version : 1;
description : "Effet Canal Plus";
>
{
input image4 src;
output pixel4 dst;

parameter float delta
<
minValue: 0.0;
maxValue: 5.0;
defaultValue: 2.5;
>;

void
evaluatePixel() {
float2 coord = outCoord();
coord.y += sin(coord.y) * delta;
pixel4 p = sampleNearest(src,coord);
dst = p;
}
}
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