HDR Soft Pro - 3.0 - Macintosh Manual do Utilizador descarregar pdf (Página 42)

Section 4: Batch Processing

Photomatix Pro User Manual Page

Section 5: Advanced Tips and Techniques

5.1 Chromatic Aberrations (CA)

Often you may see on your tone mapped or merged image artifacts like these:

CA shown in Photomatix Pro after merging

This is the result of chromatic aberrations (sometimes called fringing).

What are chromatic aberrations? Most lenses are not perfect and can sometimes focus the red,

green and blue channels on different planes (relative to the sensor). This can produce

green/purple fringes at higher contrast edges. The effect is stronger towards the corners than in

the center. Even top rated zoom and wide-angle prime lenses can show this artifact.

A tone mapped or blended image can show stronger chromatic aberrations than in the source

images. Careful inspection of the source images can reveal them.

Fortunately, some RAW converters like Adobe Camera Raw and Lightroom can help to fix

chromatic aberrations. Below, the correction of chromatic aberrations using Lightroom is shown.

The Lightroom Develop module has an extra function for removing chromatic aberrations.

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HDR Soft Pro - 3.0 - Macintosh Manual do Utilizador Página 42