Understanding image histograms is probably the single most important concept to become familiar with when working with pictures from a digital camera. A histogram can tell you whether or not your image has been properly exposed, whether the lighting is harsh or flat, and what adjustments will work...
Larger than a DSLR or mirrorless camera, cinema cameras also have space for more accessory mounting points. This helps reduce reliance on full camera rigs or cages. Cinema cameras usually also have XLR inputs as well as HDMI and/or SDI out for sending a clean video signal to an external r...
A camera processor, often referred to as an image processor, is a small chip hidden within your camera and is a marvel of modern technology. This integral piecetransforms raw sensor data into digital photosthat you can store on a memory card. But don’t let its diminutive size fool you; ...
Deciding on which camera suits any particular machine-vision application is complex. This is especially true when deciding on whether cameras based on CMOS image sensors can meet the needs of the application. A number of reasons make the choice of any particular camera complex, including...
It's important to remember that "the camera isn't always right," depending on the feeling you want to create with a photo. Sometimes, for example, you envision a somber mood, while other times a more uplifting look is what you're after. In either case you have to modify the exposu...
In short, selecting the right metering mode allows you to quickly get close to the exposure you’re after. Nonetheless, you might find that the metering is not quite right, especially after reviewing your shots, or after looking at the in-camera histogram or zebras. ...
(covariance) constraints on the distribution. But an alternative is to consider a set of filters, and impose the constraint that the maximum entropy model matches the observed histogram for each filter. This gives rise the FRAME (Filters, Random field, and Maximum Entropy) model of Zhu et al...
when the flash was moved off-camera, placed inside soft-boxes, etc, where the reading from the sensor on the flash would be useless. When metering TTL, there is a minor problem. During exposure, the mirror in a SLR is raised and the light path to the RGB CCD sensor on top of ...
Histogram Histograms help ensure your exposure is correct. Vectorscope Vectorscopes use a polar coordinate system to display hue and saturation measurements. The further out from the center of the color palette, the more intense the color
Image classification [67,142] is an important application in computer vision [4,162] and machine learning [91,193]. With the continuous development of deep learning [5,79,132], recent years have witnessed great breakthroughs in this area [48,153]. However, such success relies on a huge am...