Open Image and Display Its Histogram

This MATLAB script demonstrates how to create a simple application for opening images and displaying their histograms through a graphical interface. The implementation begins by utilizing MATLAB's Image Processing Toolbox, which provides essential functions for image manipulation. The core functionality involves creating a custom function that employs MATLAB's built-in imread() function to load image files and imshow() function to display them in the interface. For histogram calculation, the script uses the imhist() function, which computes the distribution of pixel intensity values. The histogram visualization is generated using MATLAB's plotting capabilities, typically through the bar() function or directly using imhist()'s display features. The complete application can be saved as an M-file and executed to observe both the original image and its corresponding histogram, providing valuable insights into the image's contrast and brightness characteristics. Key implementation aspects include proper error handling for file selection, support for various image formats through imread(), and customizable histogram bin specifications for detailed analysis.