PPT-CAMERA EQUIPMENT Too much light creates an over-bright image with white spots: parts of

OverExposed Too little light creates an underbright image with black spots parts of the image are UnderExposed Getting the best exposure can be difficult in scenes with contrasting light. Improving Image . Contrast using Polarization + Light . Stripe Scanning. Mohit. Gupta. Srinivasa. G. . Narasimhan. Yoav. Y. . Schechner. Polarized . flood lighting. Unpolarized. light striping. Polarized . It could be said that photography was not “invented”…. but that it evolved over time. . The word “Photography” was first used in 1839. It was coined by Sir John Herschel. It comes from the Greek words “. Too much light creates an over-bright image with white spots: parts of the image are . Over-Exposed. Too little light creates an under-bright image with black spots: parts of the image are . Under-Exposed. A Quick Overview throughout History. In its simplest form a camera as a device has three interacting systems. A viewing/Focusing system. A light control system. Image . Reciever. System. A simplistic pinhole camera has no viewing or focusing system while more complex camera systems allow for adjustment of focus and viewing of the frame.. of. Photography. Where . does the . word. "Photography” . come from?. ". Photography" is derived from . the . Greek words . photos. ("light") and . graphé. . ("to draw") . Control. Acknowledgement: . http://. www.cambridgeincolour.com. for material used in this presentation. Presented by Clive Bailey. Remember: Photography is . not. . an. art,. Photography . is. . art.. Getting it Right. Image Sensor. A silicon chip positioned inside the camera behind the lens; . It captures light bouncing off a subject and converts the light into digital information. . There are many different designs, but the most important factors to consider are—. What determines the brightness of an image pixel?. Light source. properties. Surface . shape and orientation. Surface reflectance. properties. Optics. Sensor characteristics. Slide by L. Fei-Fei. Exposure. How to take a boring photograph. Benjy Marks. So you have an experiment. And you see something. Now what?. Observation. Paper. ?. Step 1: Set the scene. Black/white backdrop. If you’ll be there a while, get rid of natural light. (Take notes on the . Underlined . material and labelled diagrams). TYPES OF CAMERAS. Point and Shoot. : inexpensive, simple to use, compact size, automatic settings. SLR / DSLR. . - (Digital) Single Lens Reflex. Canon Rebel. For this class we will be using a Canon Rebel series of cameras.. All cameras have the same general functions, but each has its own locations for the buttons.. We must become familiar with our cameras in order to produce successful images.. OUTLINE. PIXEL BASED. FORMAT BASED. CAMERA BASED. PHYSICS BASED. GEOMETRIC BASED. PIXEL BASED METHODS: CLONING. Discrete Cosine Transform. Principle Component Analysis. PIXEL BASED METHODS: OTHER. Resampling. (How to use the various settings on your digital camera). Image Size. Image Size. Large, medium, small, etc.. Choose whatever the largest image size gives you. the most flexibility (enlarging, cropping, high-quality printing, etc.). Ifeoma. Nwogu. inwogu@buffalo.edu. Lecture 5 – Image formation (photometry). Schedule. Last class . Image formation and camera properties. Today. Image formation – photometric properties. Readings for today: Forsyth and Ponce 2.1, 2.2.4.