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HomeSpecial functions: Raster graphics framesColour image (palette)Set control curve
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Edit palette

With this icon you call up image processing tools; their appearance depends on the selected image type. With the tools you can modify duochrome palette images, duplex/triplex/quadruplex images and palette colour images. With other image types an error message appears.

For duochrome palette images

The image processing tool is very simple to use: You will see a dialog that displays both colours used in the duochrome palette image.

In the selection popup at the top of the dialog you will see the status of both colours: Custom means that the colours no longer correspond to the original colours after conversion of the image to a duochrome palette image. With Black/white you can recalculate the image back into the normal black & white mode at any time.

To define custom colours, just click on one of the two small colour patches at top left of the colour list area. After this the Calamus Edit colour list dialog opens, in which you can choose any desired colour.

If you exit the Edit colour list dialog with the [OK] button (or with [Return]), the selected colour will be assigned to the previously clicked on palette colour of the image.

For duplex/triplex/quadruplex images

With this image processing tool you first have to determine what type of nplex image you want to process.

To do this, select the desired image type in the selection popup at the top of the dialog. Depending on what you have chosen, you will then see up to four image parameter lines in the dialog.

The lines are labelled Colour 1 to Colour 4 which is followed by a control curve field, a colour field as well as a colour name in each case.

If you only want to alter the colour(s), simply click on the large colour fields. After this the Calamus Edit colour list dialog opens, in which you can choose any desired colour. If you exit the Edit colour list dialog with the [OK] button (or with [Return]), the selected colour will be assigned to the previously clicked on layer colour of the image.

With greyscale or duplex images, this may be sufficient to achieve the desired effect in an image. But you can and should still take care to ensure that that the colours appear balanced with each other when mixed in the image.

To achieve this you can alter a gradation control curve for each colour. Click on the control curve field of the relevant colour. This opens the Control curve editor (e.g. FrankLIN, if you have loaded this as a module).

In the Control curve editor you can modify the gradation control curve, and save or load modified curves. If you exit the Edit control curve editor with the [OK] button (or with [Return]), the gradation control curve will be assigned to the selected colour of the nplex image, and you can see the changes directly in the document after the Duplex options dialog is closed.

Tip: For such work its best to use the extended Control curve editor FrankLIN from the start, which has to be loaded as a module. This offers a preview of the effect any changes and the possibility of modifying all the required control curves in one go.

For palette colour images

This image processing tool is used in a similar way to that for duochrome palette images: You will see a dialog that displays the 256 colours of the palette colour image.

In the selection popup at the top of the dialog you will see the status of the colour palette: Custom means that the colours no longer correspond to the original colours after conversion of the image to a palette colour image. With Greyscale you can recalculate the image back into the normal greyscale mode at any time.

To define custom colours, just click on one of the two small colour patches at top left of the colour list area. After this the Calamus Edit colour list dialog opens, in which you can choose any desired colour. If you exit the Edit colour list dialog with the [OK] button (or with [Return]), the selected colour will be assigned to the previously clicked on palette colour of the image.


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Last updated on June 24, 2015

HomeSpecial functions: Raster graphics framesColour image (palette)Set control curve