The latest Pix4Dfields update brings multiple functions to help you focus on the data that is important to you, including histogram equalization and dynamic range to get more control over the data values of interest.
Adjusting the NDVI histogram maximum and minimum values
Histogram equalization
Histogram equalization is an image processing technique that enhances contrast by distributing the most frequent values in the histogram. This technique changes the probability density function of a given image into a uniform function that spreads out from the lowest pixel value, e.g., 0 to the highest pixel value, e.g., 1.
NDVI map with histogram equalization turned off (left) and turned on (right).
Dynamic range
You can set up the minimum and maximum value of the histogram to adjust the dynamic range. By changing the range of the histogram’s x-axis you can draw attention to certain values, which gives you more insights into the condition of your fields.
Adjusting the NDVI histogram maximum and minimum values
Display modes
Pix4Dfields offers two display modes of the pixels with data values below and above the specified color range: transparent and solid.
Transparent mode displays all areas with pixel values outside the given range as transparent. Solid mode displays areas below the given range with one color and the values above the selected range with another color.
Pix4Dfields transparent display mode (left) and solid display mode (right)
Color modes
With the new Pix4Dfields update you can select between different color modes for index maps (grayscale, red-green, thermal and spectral) and digital surface models (grayscale and terrain).
Color modes for digital surface models: grayscale and terrain
Getting started with Pix4Dfields
Try Pix4Dfields for yourself. Claim your free 30-day trial of Pix4Dfields, explore the demo datasets or reach out to our team.
email: info@ssass.co.za