Tab and Source Category - Edges and Outlines

Main Edges

Under the Main Edges Tab you will find 21 brown coloured Sources. Main Edges Sources 1 to 7 have been generated using increasing amounts of simplification and segmentation – these tend to render pictures with a general outline appearance. Sources 8 through to 14 have had an additional process applied which spreads the ‘pen/pencil fill’ look in some of the white areas. Sources 15 to 21 are ‘pen/pencil’ fills with no edges and are the result of subtracting Sources 1 to 7 from Sources 8 to 14. E.g. Source 18 has been derived by subtracting Source 4 from Source 11.

Note: To turn a brown coloured Source to monochrome, simply de-saturate it by sliding the Hue/Saturation slider to the bottom of the Hue/Saturation Mixer – the read-out at the top should say 50,0.

Colour Edges

There are 21 Sources under the Colour Edges Tab and each one is generated in a similar fashion to the Main Edge Sources but using colour rather than greyscale.

Drawn Edges

In contrast to Main Edges, and rather like the Distorted Sources, the 21 Drawn Edges Sources have been ‘wobbled’ to give more of a hand-drawn feel to your pictures. The Drawn Edges Sources can be used very effectively at the periphery of your pictures.

Rippled Edges

The 14 Rippled Edges Sources have been derived from edge-detecting the Rippled Colours Sources and are used to add another type of texture and movement to artwork.

Frazzled Edges

The 14 Frazzled Edges Sources have been derived from edge-detecting the Frazzled Colours Sources and are provided to further widen the scope for adding texture and movement to artwork.

Smudged Edges

The 21 Sources in the Smudged Edges Tab look like something you might see under a microscope (!), but they are very useful for adding texture, tone and subtly to your pictures.

Thick Edges

As the name suggests, the 15 Sources included in the Thick Edges Tab generate a set of thumbnails with wider and thicker edges than those found in Main Edges.

Contours

You will find 15 Sources under the Contours Tab, all of which have been derived from edge-detecting the first 15 Sources from the Posterised Colours.

Wide Contours

The 15 Wide Contours Sources are an extension of the Contours Sources in that the edges have been fattened and thickened up.

Shaded Edges

The Shaded Edges Tab offers 24 Sources that, reading left to right, are arranged in 6 Blocks of 4 Sources per Block. The first 3 Blocks have analysed the image to find rounded highlights and the second 3 Blocks have analysed the image to find rounded lowlights.

• Block 1 consists of 4 Sources created from the positive part of a highpass Gaussian filter with an increasing scale.

• Block 2 consists of 4 Sources based on Block 1 but simplified to remove small dark areas.

• Block 3 consists of 4 Sources based on Block 1 but they have been slightly smoothed.

• Block 4 consists of 4 Sources created from the negative part of a highpass Gaussian filter.

• Block 5 consists of 4 Sources based on Block 4 but simplified to remove small white/light areas.

• Block 6 consists of 4 Sources based on Block 4 but they have been slightly smoothed.

Embossed

Under the Emboss Tab are 20 Sources grouped in 4 Blocks of 5 Sources which will prove very useful should you want add a 3-D effect to the Canvas, e.g. to give your picture an oil painting look. The Sources are organised as follows:

• Block 1 consists of 5 blue-white Sources on a black background.

• Block 2 consists of 5 black Sources on a blue-white background and have been generated using the positive part of the emboss algorithm.

• Block 3 consists of 5 Sources which are distorted versions of Block 1.

• Block 4 consists of 5 Sources which are distorted versions of Block 2.

Note: To turn a blue-white tinted Source to monochrome, simply de-saturate it by sliding the H/S slider downwards – the read-out at the top should say 50,0.