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1. #Xnconvert pdf to jpg images look jagged portable#
2. #Xnconvert pdf to jpg images look jagged professional#

#Xnconvert pdf to jpg images look jagged portable#

Portable Network Graphics: 8 bit (256 colors) and 24 bit (16 million colors) color palettes. Patents overturned due to prior art or have expired (20 yrs). Uses YCC (not RGB unless at quality 100%) to store brightness (luma) and color (chroma B & chroma R). Various formats available eg 12 bit version for grey-scale medical imaging, EXIF and JFIF. Starts to have obvious pixelation after about 70 due to reduced color availability. Compressed (10:1) with quality of 1 to 100 (full quality) using Huffman encoding of 8x8 pixel blocks. Joint Photographic Experts Group: preferred for photographs as it supports more colors (16 million colors, 24 bit) simultaneously. Best for non photographic images with fewer colors, like icons. Supports interlacing, animations and transparency. Patents were owned by Unisys and Compuserve. Graphics Interchange Format: 8 bits/pixel, color-map of 256 colors from a 24 bit RGB color-space.

#Xnconvert pdf to jpg images look jagged professional#

Used by scanners and professional photographers. TIFF also supports Zip lossless and JPEG Lossy compression. Most applications only support a subset of TIFF called baseline TIFF. Tagged Image File Format: supports a wide range of options. Twenty four bit color uses eight bits to represent each of red, green and blue.Įight bits can represent a number from 0 to 255 (0 to FF in hex). The more bits which are assigned to represent a color, the more shades that can be represented. Hex representation of the digital representation of colors:

Primary colors are red, blue and yellow which can be combined to any other color (used in the arts and painting world). The combination of all colors renders black. The combination of all colors renders white.ĭigital printers: Cyan, Magenta and Yellow (CMY) combined ( subtractive coloring) to absorb light in various quantities to achieve the appropriate color. Such as light absorption, reflection, or emission spectra.Ĭolors are defined and quantified by the degree to which they stimulate human cone cells in the retina.įor humans, this is known as "visible light".ĭigital display of color: Digital monitors: The representation of Red, Green and Blue (RGB) combined ( additive coloring) to radiate light in various quantities to achieve the appropriate color.Įach color can be represented by individual numeric quantities. Of light (electromagnetic radiation) based on an object's physical properties Color is the human perception of various frequencies/wavelengths and intensity