A color filter works by absorbing certain wavelengths of color and transmitting the other wavelengths. For example, a yellow color filter absorbs all colors except yellow, letting only yellow through, so the objects viewed appear to be yellow. If a blue light from a blue filter his a red object, the blue color is absorbed and the object reflects no light, making it appear to be black.Know More
Light is the only source of color. Opaque objects show different colors by absorbing certain parts of the light spectrum and reflecting the parts that remain. The reflected color is the color that the object appears to the eye. Color pigment is made of atoms that can absorb light with a single frequency or a range of frequencies.
A filter is a transparent material that allows some colors of light to pass through while absorbing the rest of the colors. This process is called color subtraction. A filter lets the remaining wavelengths pass through instead of reflecting them like an opaque object. White light contains all the colors, while black is the absence of color. A color filter absorbs its complementary color. For example, a magenta color filter absorbs green, leaving the remaining color wavelengths to pass through the filter.Learn more about Photography
Open the photo in a photo editing program. Select the lips in the photo. Then invert your selection and apply a black and white filter to the rest of the photo. Save the new image.Full Answer >
Both professional and amateur photographers can sell their pictures on stock photo websites such as iStockphoto or Stockxpert, as well as directly through a personal website. Photo printing services such as Shutterfly also offer full-service printing and sales solutions for a subscription fee.Full Answer >
Photographing a sunrise or sunset does not require a special lens, but certain techniques help to improve the quality of the light in the photograph. Digital Camera World recommends first changing the white balance to the daylight preset, as opposed to using the automatic setting.Full Answer >
Store pictures for free using photo storage sites or cloud storage sites. Both services offer a limited amount of free space where photos can be uploaded and stored.Full Answer >