HDR Soft Pro - 3.0 - Macintosh Manual de usuario descargar pdf (Pagina 12)

Section 2: HDR Generation and Tone Mapping

Photomatix Pro User Manual Page

General settings for Generate HDR

Alignment settings

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

misalignment problems if the camera moved slightly between the bracketed frames. This is

the case with hand-held photographs, but may also happen when shooting with the aid of a

tripod.

Photomatix offers two alignment methods based on different algorithms. The first one By

correcting horizontal and vertical shifts is fast but corrects for translation movements only.

The second one By matching features corrects for both rotation and translation.

The Don't crop option is useful when the resulting images must have the same width and

height as the source images. As an example, Realviz Stitcher requires this of images it

processes.

Ghosting reduction settings

If the scene has moving objects and you find the resulting 'ghosts' are not desirable, then

check Attempt to reduce ghosting artifacts with the option Moving objects/people selected. If

there are elements in the scene that follow a rhythmic pattern (flowing water for instance)

oscillating between shadows and highlights, then select the option Background movements

instead. In both cases, first try leaving the Detection option set to Normal. If you find that the

resulting HDR image still shows too much ghosting, then try again with the option set to High.

Only check the Attempt to reduce ghosting artifacts box with the Moving objects/people

option if it is necessary. Checking them in other cases will lower the quality of the resulting

HDR image.

Generate HDR settings when the source images are JPEG, TIFF or PSD

files:

The recommended option Take tone curve of color profile is selected by default. This is usually

the best choice when the images files come from a DSLR camera or have been converted

from RAW files. This option loads the Tone Reproduction Curve data from the ICC color profile

associated with the source images in order to determine the non-linear function applied to the

raw sensors data. If no profile is available, it uses the tone reproduction curve of the Adobe

RGB color profile.

When the images are scanned films or taken with a compact camera, it may be worthwhile to

check the option Attempt to reverse-engineer tone curve applied.

If your source images are 16-bit TIFF files that have been converted from RAW files with a

special option in the RAW converter to leave the image in linear space, then check the option

No tone curve applied – pixel values are linear. Only check this option if you are 100% sure that

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HDR Soft Pro - 3.0 - Macintosh Manual de usuario Pagina 12