Others Like “Image Compression” (top 20 results)
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Make a pinhole projector (see Measuring the Diameter of the Sun and the Moon). Use the pinhole to project an image of the Sun onto a wall or a piece of paper. Do you notice any dark spots on the projected image? Trace the projected image and count the dark spots. Use your pinhole projector to make images of the Sun at the same time of day for several consecutive days. How does the pattern of spots change? Can you use your data to figure out how fast the Sun rotates? Sunspot activity rises…
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In this project you'll learn about how digital image files are encoded, and how digital images can be compressed so that the files take up less storage space and can be transmitted more quickly. You will also measure the quality of compressed and uncompressed images, which will give you important insights into the tradeoffs between file size and image quality.
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Lively, vivid colors can add pizzazz and turn a dull photo into a work of art. Learn how changing the saturation levels of the colors in your photo can really make it pop!
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If the prefix "macro" means large and "micro" means small, then why will the macro setting of a digital camera help take a better picture of a small object? Do this experiment and get the big picture.
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Radio-controlled (RC) robots can explore places that are difficult or dangerous for humans to get to, like collapsed buildings after a natural disaster. They can use cameras and a variety of other sensors to gather information about their environment, like the presence of toxic gases or other hazardous materials. The robots can even use grippers and robotic arms to collect and safely dispose of some materials. You can build your own RC robot using the Science Buddies Bluebot kit, Science…
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Do you have a favorite picture? When you have a photo that you treasure, you want it to look as good as possible. Find out how the resolution of a digital photo effects the way it looks when you print it out. How does the quality of the image relate to the resolution?
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If you ever rode in a cable car, ski lift, or gondola, you know they make moving over obstacles like lakes, valleys, rivers, or even up steep mountains seem easy. Though it would be pretty difficult to build a full-size cable car in your home, if you have a Mindstorms® kit, you can build a working-model cable car of your own. The engineering challenge is to build a LEGO® cable car that can travel across a string you have suspended somewhere in your house (between two pieces of…
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Could you use a magnetic slime "robot" to retrieve a battery accidentally swallowed by a small child? Scientists think so! Watch this video to learn about magnetic slime that, when driven by external magnetic fields, can squeeze through small spaces and even grasp objects.
Can you make your own magnetic slime robot that can accomplish some of the same tasks demonstrated by the researchers? You can start by adding iron filings to slime to make your own magnetic slime (see this Science…
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This project idea is inspired by former NASA engineer Mark Rober's "Squirrel Ninja Obstacle Course":
You do not need to build a full obstacle course as intricate as Mark's (although you certainly can if you want to!) to make this into a fun science project. For example, how far can squirrels jump? You could test this question by building a mobile post and placing it next to a bird feeder. The bird feeder in Figure 1 is mounted on a metal pole. The pole is protected by a squirrel baffle, a…
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Advanced students might want to look for an experiment in the areas of color theory or gamma and light curves. Following web page can help you get started: Color Theory Fundamentals for Digital Photography
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