Transformation range of brightness in Photomatix Pro

Transformation range of brightness in Photomatix Pro


    I discuss the program Photomatix Pro, because it is now probably the most popular tool for creating HDR-images. Technique for creating HDR-images currently applies to complex areas of digital photography, it is useful to consider the best way to create an HDR-image. The following description applies to version 2.5.4.

    иллюстрация Figure 1. Option Tone Mapping (transformation range of brightness) in Photomatix Pro is selected in the dropdown menu.

    Photoshop and Photomatix Pro are not mutually exclusive. Although Photomatix Pro can solve the problem yourself, conversion element brightness range exists as a plug-in – plug-in module. If any of HDR-images can be created in Photoshop, and the transformation of the brightness range, held in Photomatix. In some cases, this may be the best solution in terms of the organization of work.


    Window in Photomatix Tone Mapping

    for converting brightness range window Tope Mapping in Photomatix Pro is very different from a similar window in Photoshop and at first glance seems more complicated, but do not be afraid.

    Photomatix offers two methods of conversion, rather than four as in Photoshop: Details Enhancer (selection details) and Tone Compressor (compression tones). Later in this section deals mainly with more complex transformation method, we choose the option with Details Enhancer. This method works locally as Local Adaptation option in Photoshop. Tone Compressor option controls the tonal settings globally and in many ways similar to the options Exposure and Gamma, Highlight Compression and Equalize Histogram in Photoshop.

    Basic settings are on the left side of the preview window, and are usually applied in the sequence shown below.


    Black and white cut-off point

    located below the histogram sliders setting black and white points of the cutoff. The maximum value is 255 (pure white), the minimum is 0 (pure black). Moving the slider to the right to increase the contrast of the entire image, effectively obscuring black and three-quarter tones and blowing out white and quarter. Moving the slider to the left reduces the number of pixels the cut. Changes made by each of the engines, immediately reflected in the histogram.



    The engine is responsible for the gamma adjustment affects the midtones. Offset to the right lightens the entire image, while the left – darkens. This setting is largely analogous to the eponymous engine option Levels Adjustment in Photoshop.



    When configured range of global contrast, local and global contrast adjustment can be specified by setting the parameter Strength. Setting high values, we increase the contrast, and vice versa. The purpose of this adjustment is to achieve a balance between intensity and naturalness show the details of the image.



    The compression of the tonal range is adjusted by using the Luminosity. His work is in many ways similar to the management scheme and is similar to the range of control options in the Levels in Photoshop. By moving the slider to the right increases the brightness of the image, and the left – is reduced. In this setting, along with the regulation parameter Strength is often possible to compensate for blackout shades, caused by the increase of the parameter Strength.



    The degree of color saturation set with the parameter Color Saturation. Refrain from very high color saturation, which may be pleasant to the eye on the monitor, but often creates the opposite impression on the print. A moderate increase in saturation allows profitable accent color, such as landscapes.

    иллюстрация Figure 2. Functions Tone Mapping in Photomatix Pro is more complicated than in Photoshop.

    иллюстрация Figure 3. Conversion settings brightness range applied to the image before saving it for later HDRI settings in Photoshop.

    иллюстрация Figure 3. Final image is converted to a range of brightness is very similar to the corresponding image obtained using HDRI tools in Photoshop (see above).

    comments powered by Disqus