HDR Soft Pro - 4.1 - Macintosh Bedienungsanleitung PDF herunterladen (Seite 9)

Photomatix Pro User Guide 7

2.1.2 General Pre-Processing Options

After the bracketed images are selected, the pre-processing settings for the images may be customized before

the 32-bit HDR image is generated. Refer to the following list for a description of the available options for

merging bracketed images:

Alignment Options

The Align source images option is checked by default. It corrects

misalignment problems when the camera moves slightly between

the bracketed frames. Hand-held photographs and even some

images shot with a tripod have camera movement.

• By correcting horizontal and vertical shifts: Faster method,

but only corrects for translation movements.

• By matching features: Corrects for rotation, translation

and scaling dierences, as well as perspective distortion if

included. Recommended for hand-held shots.

• Include perspective correction: Requests that the alignment

by matching features corrects for perspective distortion in

addition to correcting for translation, rotation and scaling

dierences.

• Crop aligned images: Checked by default. Removes the

unused borders that appear when the images are shifted to

correct for mis-registration. Leave this box unchecked if you

need the resulting image to have the same width and height

as the source images.

• Maximum shift: Sets the maximum mis-registration shift

that the alignment attempts to correct for, and is expressed

as a percentage of the image dimensions. This setting does

not need adjusting in most cases. A situation when adjusting

this setting may be useful is when the camera barely moved

between the bracketed shots. In this case, setting a maximum

shift lower than 12% will restrict the number of alignment

corrections searched, thereby reducing the risk of selecting an

improper alignment correction.

Selecting pre-processing options

Deghosting Options

The Remove ghosts option addresses the problem of artifacts

that appear when combining images of a dynamic scene. For

example, if the moving subjects are people walking, the people

appear multiple times in the combined image as if there were

“ghosts”. This is why artifacts arising from movements in the

scene are commonly referred to as “ghosting” and the attempt to

eliminate them as “deghosting”.

Note

The Align source images option should

not be checked when your source images

are stitched panoramas or when they are

"fake exposures" derived from a single

RAW le.

The deghosting option is effective for

images processed with Tone Mapping or

with the default Exposure Fusion method.

It is not effective for the other Exposure

Fusion methods.

• With selective deghosting tool: Activates the Selective Deghosting Tool, which lets you select ghosted

regions and choose the exposure used for each ghosted region.

• Automatically: Automatically detects ghosted zones in the merged image.

• Detection: Sets the criteria for determining if a pixel is or is not ghosted when using automatic deghosting.

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