HDR Soft Pro - 5.0 - Windows Manual de usuario descargar pdf (Pagina 29)

Photomatix Pro 5.0 User Manual 27

3.7.2 Fitting the Selection to the Area’s Edges

The area to be replaced usually has at least one irregular border (such as the mountains in this sample

photograph)� It’s dicult to draw irregular borders exactly, and you don’t have to� You can draw approximate

borders, and Photomatix will t them for you by "nding the edges"�

Finding the edges

The borders of the area you want to replace are almost

always at edges — large changes in brightness between

adjacent pixels� In the sample photo, the transition between

the light sky and the darker mountains is an edge�

Selecting the Attach to Edges checkbox causes Photomatix to search for an edge near the selection path you

drew� The selection path is then redrawn along the edge — in this case, the mountains�

Polygonal selection after clicking "Attach to Edges"

Attach to Edges checkbox

The Contrast setting (Low, Medium, High) determines whether a dierence in brightness is large enough to

be detected as an edge� The higher the setting, the greater the brightness dierence has to be�

The Width box (next to the Attach to Edges box) sets the maximum distance Photomatix searches (in pixels)

from the original selection path� If Photomatix nds an edge within the Width setting, the selection is

redrawn to t the edge� If Photomatix nds a border of the image, the selection is redrawn along the border�

Changing the Width or Contrast setting immediately redraws the selection path to reect the new value�

To undo the edge t, clear the Attach to Edges checkbox�

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HDR Soft Pro - 5.0 - Windows Manual de usuario Pagina 29