1 / 21

Computer Vision

Computer Vision. Introduction to Image formats, reading and writing images, and image environments Image filtering. Images. Black and white image is a 2D matrix. Intensities represented as pixels. Color images are 3D matrix, RBG. Linear Filtering.

Download Presentation

Computer Vision

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Computer Vision • Introduction to Image formats, reading and writing images, and image environments • Image filtering

  2. Images • Black and white image is a 2D matrix. • Intensities represented as pixels. • Color images are 3D matrix, RBG.

  3. Linear Filtering • About modifying pixels based on neighborhood. Local methods simplest. • Linear means linear combination of neighbors. Linear methods simplest. • Useful to: • Integrate information over constant regions. • Scale. • Detect changes. • Fourier analysis.

  4. (from Freeman, MIT)

  5. (Freeman)

  6. Convolution • Convolution kernel g, represented as matrix. • it’s associative • Result is:

More Related