RawDigger 圆4 displays the real histogram of the raw data, which greatly differs from the in-camera histogram and histograms presented by most of the raw converters. Support for new cameras is usually implemented within few weeks after raw samples become available. RawDigger 圆4 supports nearly all cameras that have raw capability. Instead, it allows you to see the data that will be used by raw convertors. RawDigger 圆4 doesn’t alter the raw data in any way. In essence, it is a microscope of sorts that lets you drill down into raw data. I will leave it to the reader to interpret the results.A tool to visualize and examine pure raw data as the camera has recorded it. One then looks at the raw data for these exposures, using RawDigger. The camera histogram and blinking highlights are shown. Exposures at 1/20, 1/25, and 1/30 second at f/8 produced these results. To compare the camera histogram and blinking highlights, I bracketed exposures of a Stouffer step wedge. So one can spot meter the area in the scene where one wants to retain highlight detail and increase exposure by 3 stops, placing the metered area at clipping. The green channels are at 496 in a 12 bit file, and the saturation is 12.4% (assuming saturation at a raw value of 4000). Here is a reading from the central area of the gray card. To determine the light meter calibration, one can expose a gray card (or white card for that matter) and determine the corresponding raw value and determine the percent saturation of the sensor. One would think this would be important in a forum where ETTR was popularized. Rawdigger is most useful in checking the calibration of one's meter/exposure system and determination of ETTR exposure as compared to spot meter readings and the appearance of the camera histogram and blinking highlights. I am surprised that no one has commented on Iliah's post. Suggestions and bug reports are most welcome. The beta version of RawDigger relies on Internet connection. OS X and possibly Linux will be supported at later stage.Ĭurrently, user reports are that one can use Wine to run RawDigger under OS X and Linux (configurations reported as tested are OS X 10.6.8 and Wine-1.2.3 Wine (1.3.37-0ubuntu1~ppa1~lucid1) and Debian testing. Screen resolution should be 1024x768 or better.
Usage of rawdigger windows#
The program runs on a computer with Windows (XP, Vista, 7), 32 or 64-bit, 1GB memory, CPU supporting SSE2 or higher (Intel Pentium 4 or newer). Save the compression (tone) curves of raw files in a tabulated form (for cameras and raw data formats where such curves are used).
Calculate the statistics per channel and save the results in a processing-friendly form - CSV, CGATS (for an arbitrary number of rectangular areas of the file). Calculate the statistics per channel (minimum, maximum, average, root-mean-square deviation) for the entire file. The histograms can be saved as graphics or as a table providing for convenience of further external processing. Plot and save raw data histograms per channel for both the entire file as well as an arbitrary rectangular area of the file (selection). View the real (that is, prior to any processing) pixel values in the raw file. RawDigger is a computer program intended for viewing, studying, and analyzing raw files from digital photo cameras and some digital video cameras.