The i1Profiler program offers a simple basic mode and an enhanced user mode which allows the user to select many more or less meaningful settings yourself. The straightforward structured, clearly structured and reproducible workflows and good help function are particularly noticeable positive.
For single workstations with only a monitor, it is preferable usually, not artificially to modify the values for the white point and the contrast ratio, but given the hardware (so-called. Native) maintain values in the profile to the full dynamic operating range of the monitor to obtain.
The luminance (at ordinary TFT screens corresponds to these parameters, the brightness of the backlight) should be adjusted so that a stress-free and pleasant viewing is possible with the prevailing lighting conditions in the work environment. Suitable setting for luminance is considered a value of about 120 cd / m² in general. In a darkened working environment, however, the luminance should be reduced, while it may be mounted in a very bright environment to increase the luminance.
Some monitors automatically adapt their brightness to the ambient light; in this case, the luminance may not necessarily be set manually in the profile. It should be ensured then, however, that the monitor does not change its brightness during profiling.
If necessary, the illuminance of the ambient light can be easily measured with the i1Display Pro. To this end, the light diffuser has to be turned before the appearance of the instrument. The i1Profiler program can determine from the measurement result directly a suitable luminance for the profiling.
In addition, it is possible with the i1Display Pro to measure the illuminance of ambient light regularly and to arrange for a new profiling of the screen when changes. To this end, the i1Display Pro must remain connected and also the included i1ProfilerTray run constantly in the background. Normally this function is dispensable, so dispense with the background program i1ProfilerTray and i1Display Pro can be removed from the computer.
Both looked at the monitor and the i1Display Pro should be switched on in time before the start of profiling, so that both devices initially achieve a constant operating temperature. On this important aspect of the operations of i1Profiler program is not particularly pointed strangely enough, in the otherwise very thorough explanations. If necessary, the screen from dirt or dust should be cleaned.
The actual profiling done by the program represents i1Profiler on the screen one after the other focus areas in different colors, which are here measured by i1Display Pro. To this end, the measuring field set can be selected from three standard measuring field sets comprising 118, 211 or 462 measurement fields. Because even with the use of the large measuring field set the profiling is finished in a few minutes, it is usually not necessary to select a smaller spot rate. In addition to the standard measurement fields, the user can specify other measuring fields from any spot colors. (I add gladly be added the 110 real skin tones from the PANTONE skintone Guide example, the 462 measurement fields of the large standard measuring field set to place at the profiling, a greater emphasis on these colors, which are particularly important for the processing of portrait images. For the measurement the total of 572 fields are required about ten minutes.)
By comparing the measured for the measurement fields values with the corresponding theoretical setpoints i1Profiler automatically determines an ICC profile, which is saved as a file and installed the operating system, so it can be easily used by all applications that support color management. Moreover i1Profiler calibrated the tone curves so that the display on programs that do not use color management, is halfway corrected. The thus-set gamma value can be selected by the user prior to profiling. Preferably, you should choose this tone curves corresponding to the sRGB profile as possible. It should be noted that the sRGB profile is not, as is often claimed, a constant gamma of 2.2 used but a special function with gamma values from 1.0 to 2.4, which, however, can be selected in i1Profiler.
To maintain the validity of the calibration and the monitor profile, then of course no changes in monitor settings can be made; additional program functions for display calibration (about the operating system, the graphics card driver or an image editing program) must not be used. However, should a change be necessary (eg. B. Update the video card driver), then re-profiling of the monitor is required. In addition, the profiling should be repeated on a regular basis, because changing the characteristics of the monitor slowly with time. It is possible, however disproportionate, this to let the program i1ProfilerTray constantly running in the background, to be all one remembers to four weeks on the renewal of the profiling.
