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Lenna (or Lena) is a standard test image used in the field of digital image processing, starting in 1973. [1] It is a picture of the Swedish model Lena Forsén , shot by photographer Dwight Hooker and cropped from the centerfold of the November 1972 issue of Playboy magazine.
Camera manufacturer: Canon: Camera model: Canon PowerShot SX1 IS: Exposure time: 1/10 sec (0.1) F-number: f/2.8: ISO speed rating: 200: Date and time of data generation: 16:14, 29 August 2013: Lens focal length: 5 mm: Orientation: Normal: Horizontal resolution: 180 dpi: Vertical resolution: 180 dpi: File change date and time: 16:14, 29 August ...
Digital image processing is the use of a digital computer to process digital images through an algorithm. [1] [2] ... Digital camera images ... Free boundary condition;
Nikon EXPEED, a system on a chip including an image processor, video processor, digital signal processor (DSP) and a 32-bit microcontroller controlling the chip. An image processor, also known as an image processing engine, image processing unit (IPU), or image signal processor (ISP), is a type of media processor or specialized digital signal processor (DSP) used for image processing, in ...
Computational photography refers to digital image capture and processing techniques that use digital computation instead of optical processes. Computational photography can improve the capabilities of a camera, or introduce features that were not possible at all with film-based photography, or reduce the cost or size of camera elements.
The digitized image is stored as a computer file ready for further digital processing, viewing, electronic publishing, or digital printing. It is a form of digital imaging based on gathering visible light (or for scientific instruments, light in various ranges of the electromagnetic spectrum ).
Most modern digital cameras acquire images using a single image sensor overlaid with a CFA, so demosaicing is part of the processing pipeline required to render these images into a viewable format. Many modern digital cameras can save images in a raw format allowing the user to demosaic them using software, rather than using the camera's built ...
An image pipeline or video pipeline is the set of components commonly used between an image source (such as a camera, a scanner, or the rendering engine in a computer game), and an image renderer (such as a television set, a computer screen, a computer printer or cinema screen), or for performing any intermediate digital image processing consisting of two or more separate processing blocks.