Convert Tab Sheet
The Convert tab sheet of
Expert Mode is for adjusting the B/W conversion process. It offers six methods,
which can be chosen from the Method combo box.
Contrast & Brightness Sliders
All methods offer a Contrast and Brightness slider. They don't work like normal brightness and contrast sliders. They influence the B/W conversion itself and are based on color differences in the original color image. Slider values above zero usually produce brighter results whereas values below zero result in a darker image. Both sliders allow quite extreme adjustments, so be careful not to overdo it.
The Standard method converts to B/W by using the luminosity of the color image.
The Desaturation method converts to B/W by using the lightness of the color image. It desaturates the color image by removing all colors.
The Color Filter method lets you choose a color for doing the B/W conversion. For example, if you choose a red color with the Hue slider, the red areas of the color image will get bright in the B/W image. As Cyan is the complimentary color of red the cyan image areas will get dark. All other areas will have gray tones that are in between.
The Channel Mixer basically works similarly to the Color Filter Method except that it lets you choose more extreme colors for more extreme results. It also lets you select a color for the B/W conversion with the Red, Green and Blue sliders. The chosen color is displayed in the color box to the left of the sliders. Clicking on this color box displays a color dialog for choosing a color and sets the sliders accordingly. With activated Preserve check box, B/W Styler preserves the brigntess of the image during the B/W conversion. Deactivating it let you produce under- or overexposed results
The Infrared method tries to recreate B/W photos that were shot with infra-red sensitive film. The Range slider simulates red, yellow and green lens filters that were traditionally used to produce infrared looks.
A similar effect can be created with the Infrared preset on the Selective tab sheet of Expert mode or in B/W Films mode. But for the highest degree of control use both features in combination.
Split B/W is a unique method for B/W conversion which produces results that are not possible with the other methods of the Convert tab sheet. The Shadow-Hue and Highlight-Hue sliders let you select individual color filters for the shadows and highlight areas during the B/W conversion.
The Threshold slider lets you shift the borders between the shadows and highlights. A middle value of 128 defines shadow and highlight areas of equal width whereas a value of zero suppresses the shadow hue and a value of 255 suppresses highlight hue. The Transition slider adjusts the smoothness between the shadow and highlight areas. A slider value of zero usually creates ugly aliased edges in the image, so it is best to use a higher value for a smooth transition. A value of 255 on the other hand blends the shadow/highlight borders too much and produces a B/W conversion that is very similar to that of the Color Filter method.
If you consider the Split B/W method too complex, you can also use the Color Filter method together with the Simple method from the Selective tab sheet. However, you won't be able to do the same B/W conversions with this strategy as with the Split B/W method. For some images only the Split B/W method may achieve a certain result that you have in mind.