Question

What is image statistics? Explain the univariate and multivariate image statistics in detail.

19 Jan 2026
Answer :
Word Count : 573
Image statistics refers to the quantitative description and analysis of the digital values present in an image. In remote sensing and digital image processing, an image is composed of pixels, each having a digital number representing the intensity of reflected or emitted electromagnetic energy from the Earth’s surface. Image statistics summarize the distribution, relationship, and variability of these pixel values, enabling interpretation, enhancement, classification, and analysis of remotely sensed data. Statistical analysis helps in understanding image characteristics, reducing noise, improving contrast, and extracting meaningful information from satellite or aerial images. Univariate image statistics deal with the analysis of a single variable or a single spectral band at a time. In this approach, the statistical ____ _______ __________ _____ _______ _____ ______.
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