To extract digits from an image in MATLAB, we typically follow these steps:
1. Image Preprocessing:
- Read the image: Load the image into MATLAB using the imread function.
- Convert to grayscale: Convert the image to grayscale to simplify processing.
- Noise reduction: Apply noise reduction techniques like median filtering or Gaussian filtering to improve image quality.
- Thresholding: Convert the grayscale image to a binary image using thresholding to separate foreground (digits) from the background.
2. Digit Segmentation:
- Locate digit regions: Use techniques like connected component analysis or morphological operations to identify individual digit regions.
- Isolate digits: Extract each digit region from the image.
3. Optical Character Recognition (OCR):
- Apply OCR: Use MATLAB's built-in OCR function (ocr) to recognize the digits within each isolated region.
