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In computer programming, an input mask refers to a string expression, defined by a developer, that constrains user input. [1] It can be said to be a template, or set format that entered data must conform to, ensuring data integrity by preventing transcription errors. The syntax of this string expression differs between implementations, but the ...
Masks are used with IP addresses in IP ACLs (Access Control Lists) to specify what should be permitted and denied. To configure IP addresses on interfaces, masks start with 255 and have the large values on the left side: for example, IP address 203.0.113.129 with a 255.255.255.224 mask. Masks for IP ACLs are the reverse: for example, mask 0.0.0 ...
In image processing, a kernel, convolution matrix, or mask is a small matrix used for blurring, sharpening, embossing, edge detection, and more. This is accomplished by doing a convolution between the kernel and an image. Or more simply, when each pixel in the output image is a function of the nearby pixels (including itself) in the input image ...
Mask generation functions are deterministic; the octet string output is completely determined by the input octet string. The output of a mask generation function should be pseudorandom, that is, if the seed to the function is unknown, it should be infeasible to distinguish the output from a truly random string.
This requires that the masking applied is repeatable (the same input value to the masking algorithm always yields the same output value) but not able to be reverse engineered to get back to the original value. Additional constraints as mentioned in (1) above may also apply depending on the data element(s) involved.
In many computing contexts, it is preferred to omit digit group separators from the data and instead overlay them as a mask (an input mask or an output mask). Common examples include spreadsheets and databases in which currency values are entered without such marks but are displayed with them inserted. (Similarly, phone numbers can have hyphens ...
Given an input image, R-CNN begins by applying selective search to extract regions of interest (ROI), where each ROI is a rectangle that may represent the boundary of an object in image. Depending on the scenario, there may be as many as two thousand ROIs.
Edit mask may refer to: Bit mask; Filter criteria called edit mask (for example, erasing of leading zeros and non-numerical symbols) for various computerized input fields; The user mask associated with each process in Unix and Linux systems, which restricts the permissions that can be set on newly created files