Definition: Joint Photographic Experts Group. This group established a standard method for compressing and decompressing digitized photos or images. The high-resolution images provided with PhotoDisc are compressed according to JPEG standards.
Definition: A standard for compressing image data developed by the Joint Photographic Experts Group, hence the name JPEG. Strictly speaking, JPEG is not a file format, it's a compression method that is used within a file format, such as the EXIF-JPEG format common to digital cameras. It is referred to as a lossy format, which means some quality is lost in achieving JPEG's high compression rates. Usually, if a high-quality, low-compression JPEG setting is chosen on a digital camera, the loss of quality is not detectable to the eye.
Definition: JointPhotographicExperts Group (the committee that established the baseline algorithms), . jpg. . A JPEG is a graphic image file created by choosing from a range of compression qualities (actually, from one of a suite of compression algorithms). When you create a JPEG or convert an image from another format to a JPEG, you are asked to specify the quality of image you want. Since the highest quality results in the largest file, you can make a trade-off between image quality and file size. There are several versions of JPEG, some proprietary. JPEG analyses images in blocks of 8 X 8 pixels in size, and selectively reduces detail within each block. At higher compression ratios, the block pattern becomes more visible and there may be noticeable loss of detail. The actual effect depends on the size of the image when output on a monitor or printer and on the type of subject. This is why you can get as many images into the digital cameras. The results in decompression of the files can cause "blockiness," the “jaggies," or " pixelization " in some digital images. The higher the compression ratio the more the pixelization or "blockiness" occurs. The greater the pixel count, the less pixelization may occur.
Definition: format for compressed graphics files. JPEG graphics are commonly used as part of World Wide Web.
Definition: A standard for compressing image data developed by the Joint Photographic Experts Group, hence the name JPEG. Strictly speaking, JPEG is not a file format, it's a compression method that is used within a file format, such as the EXIF-JPEG format common to digital cameras. It is referred to as a lossy format, which means some quality is lost in achieving JPEG's high compression rates. Usually, if a high-quality, low-compression JPEG setting is chosen on a digital camera, the loss of quality is not detectable to the eye.
Definition: JointPhotographicExperts Group (the committee that established the baseline algorithms), . jpg. . A JPEG is a graphic image file created by choosing from a range of compression qualities (actually, from one of a suite of compression algorithms). When you create a JPEG or convert an image from another format to a JPEG, you are asked to specify the quality of image you want. Since the highest quality results in the largest file, you can make a trade-off between image quality and file size. There are several versions of JPEG, some proprietary. JPEG analyses images in blocks of 8 X 8 pixels in size, and selectively reduces detail within each block. At higher compression ratios, the block pattern becomes more visible and there may be noticeable loss of detail. The actual effect depends on the size of the image when output on a monitor or printer and on the type of subject. This is why you can get as many images into the digital cameras. The results in decompression of the files can cause "blockiness," the “jaggies," or " pixelization " in some digital images. The higher the compression ratio the more the pixelization or "blockiness" occurs. The greater the pixel count, the less pixelization may occur.
Definition: format for compressed graphics files. JPEG graphics are commonly used as part of World Wide Web.
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