What is 32-bit Photogrammetry?
Photogrammetry is the process of using photographs to measure and map the physical features of an object or environment. In 32-bit photogrammetry, the images used are captured at a colour depth of 32 bits per pixel.
Colour depth refers to the number of bits used to represent each colour in a digital image. A higher colour depth means that there are more possible colours that can be represented in the image. In 32-bit photogrammetry, each pixel in the image is represented by four 8-bit values, one for each of the red, green, blue, and alpha (transparency) channels.
The higher colour depth of 32-bit photogrammetry can provide more accurate and detailed measurements, especially in areas with subtle colour variations or low contrast. It can also help to reduce errors and artefacts that can occur in the photogrammetry process by extracting and recovering data and texture in shadows and highlights resulting in more complete and accurate models and lighting with applications in inspection, site documentation light and reflection studies
OpenEXR
OpenEXR is a high dynamic range (HDR) image file format created by Industrial Light and Magic (ILM) that is designed to store high-quality image data with a wide range of color and brightness values.
Unlike traditional image file formats like JPEG and PNG, which have a fixed range of color and brightness values, OpenEXR files can store pixel values that exceed the traditional range of 0 to 1. This makes OpenEXR files well-suited for storing images that have a high dynamic range, such as those produced by HDR photography or computer-generated graphics.
OpenEXR files also support lossless compression, which can reduce the file size while preserving image quality. This can be particularly useful when working with large files or when transferring files over a network.
OpenEXR has become a popular format in the film and visual effects industries due to its ability to store high-quality image data with a wide range of colour and brightness values, making it an essential tool for professionals working in these fields. It is also supported by many popular software applications, including Adobe Photoshop, Blender, and Autodesk Maya.
