1. By Philip Lawson Digital Imaging 5 The Basics - Scanning and Printing The Master Image Working with Layers Working with Channels Black and White

2. Greyscale By Black and White we really mean a Monochromatic Greyscale Image Or a Duotone Or a Line Drawing

3. Greyscale Printing Printing Greyscale images is Problematic Printing in Colour Inks leads to –Colour casts –Lack of decent blacks Printing in Black Ink leads to –Lack of decent gradation Best to use Greyscale Ink Printers –Differing density inks and –Differing dot sizes

4. Greyscale By Black and White we really mean a Monochromatic Greyscale Image Or a Duotone Or a Tritone Or a Line Drawing

5. Creating Greyscale 1 Scan in Monochrome “Image->Mode->Greyscale” “Image->Adjust->Desaturate” Copy a Channel to a New Greyscale Image

6. Creating Greyscale 2 Create a new Layer and Flood fill with Filter Colour of your choice Create a Hue/Saturation Adjustment Layer and set Saturation to –100% Manipulate Opacity to obtain desired effect Flatten Layers Change Mode to Greyscale

7. Adjusting Greyscale: Before Almost all accurate adjustment is done to Greyscale images with the Levels tools

8. Adjusting Greyscale: After 1 Trim Dynamic Range and Contrast

9. Adjusting Greyscale: After 2 Trim Printer Dynamic Range (Output levels)

10. Adjusting Greyscale: After 3 Curves can be used for greater precision or special effects

11. Tones 1 Toned prints can be made from Greyscale images converted back to Colour Then Overlay a Colour Layer and Blend

12. Tones 2 Alternatively, convert Greyscale to Duotone and select ink colour and transfer function Use dark/dense inks

13. Duotones 1 Duotones (and others) do not create extra channels

14. Duotones 2 Colours are mixed according to the precise transfer functions created Double click to edit function or colour

15. Line Art and Liths 1 Good Line Art requires very high resolution scans Line Art should ideally only be Black and White – no Greys Convert to Bitmap – very poor

16. Line Art and Liths 2 Add a Threshold Adjustment Layer for much greater Control

17. Line Art and Liths 3 For more effects play with Blend Modes and Opacity of Adjustment Layer

18. End of Black and White Photographs courtesy of Janet Edwards