Simple question - tough answer.
There is currently no single "industry standard" for measuring image quality.
Some aspects to consider:
Digital cameras are bending and capturing light and storing that as a bunch of "1"s (ones) and "0"s (zeros). The number and complexity of the variables is staggering when you get into the details.
Mega pixzal
Pixel density. The greater the density, the higher the quality of the image.
in the number of pixels
They do. If you wera.
Yes, most digital cameras will allow you to change the quality of the pictures you're taking. Some digital cameras will even allow picture editing and camera effects for the pictures you're taking.
You should look at the specifications of the camera. If you can't find it on the box the specs will be online. Often times the best cctv cameras are MPEG4 resolution, which is the same as a DVD. The quality of a digital image is measured in megapixels. So genertally speaking the higher the number of megapixels the better the picture quality.
Traditional film cameras do not have a screen since the image is recorded onto celluloid and can only be viewed once it has been developed - this process is largely absent of electricity and is a blend of physics and chemistry, unlike modern digital cameras. Digital cameras store the image digitally and almost instantly, meaning you can view the image on the screen. The aspect ratio on digital cameras can vary, so technically the shape and size of the image can vary between 35mm fill cameras and digital. This is particularly noticable when using a lens taking from a 35mm camera and using it on a digital camera. Film cameras provide a far better quality of image that digital photography cannot (realistically) emulate. However, digital is preferred because the ease of producing large images is fast and requires little expereince - unlike film based photography.
The Canon A-series of cameras are great for point and shoot photos. They have facial recognition, 3x optical zoom and great image quality.
Digital light cameras use a device called a ____________.
Nikon digital cameras are equipped with some of the latest features in digital photography. For example, the Coolpix series has become a popular line of point and shoot cameras because they are affordable and user friendly. Touch screen technology allows for easy navigation through camera settings. Additionally, HD video recording capabilities allow users to capture movies in 720p quality. When it comes to image quality, most Nikon cameras offer image resolutions between 12 and 16 Megapixels.
Each manufacturer has their own algorithms of controlling the image quality. But as a general rule you have a number of setting controlling jpg quality. It's still irrelevant of all the subjective qualities of the image - this only refers to the compression/de-noising/sharpenning ratios.
Some common features that high speed digital cameras have include: image quality, LCD touch screen, slow motion ability, USB ports, Gigabit Ethernet and built in SSD.