Lines Matching refs:quantization

78 and color quantization.  The application indirectly selects use of this code
81 library automatically invokes color quantization.
237 quantization to deliver colormapped output.)  If you request colormapped
623 quantization, jpeg_start_decompress() will do everything needed before data
653 relevant parameters (scaling, output color space, and quantization flag).
902         Constructs JPEG quantization tables appropriate for the indicated
906         in future IJG releases as more is learned about DCT quantization.
907         If the force_baseline parameter is TRUE, then the quantization table
935         Set default quantization tables with linear q_scale_factor[] values
941         Allows an arbitrary quantization table to be created.  which_tbl
1064         Pointers to coefficient quantization tables, one per table slot,
1067         is general enough to define any quantization table.  The other
1073         Linear quantization scaling factors (0-100, default 100)
1988 quantization for display passes made while the image is arriving, followed by
1989 a final display pass using two-pass quantization for highest quality.  This
2148 * jpeg_start_output() performs input only if you request 2-pass quantization
2174   of course this has no impact if not using color quantization.  Typically
2189 * Color quantization mode can be changed under the rules described below.
2192   quantization method is used.
2194 When generating color-quantized output, changing quantization method is a
2196 The library allows you to change among its three quantization methods:
2197 1. Single-pass quantization to a fixed color cube.
2199 2. Single-pass quantization to an application-supplied colormap.
2202 3. Two-pass quantization to a colormap chosen specifically for the image.
2220 enable flags for any other quantization methods you plan to change to later.
2223 can change to any enabled quantization method by setting two_pass_quantize
2245 When using two-pass quantization, jpeg_start_output() makes a pass over the
2253 conditions.  The combination of 2-pass quantization and a not-yet-fully-read
2304 A JPEG file normally contains several hundred bytes worth of quantization
2331 decompression objects, a quantization or Huffman table will be retained for
2337 quantization and Huffman table struct contains a boolean field "sent_table",
2359 containing only SOI, DQT and/or DHT markers, and EOI.  All the quantization
2391 for an example of copying quantization tables.
2398 to load a fixed quantization table into table slot "n":
2404       /* Qtable[] is desired quantization table, in natural array order */
2424 contain a quantization table definition, your master table would get
2728 you cannot ask for rescaling or color quantization, for instance.  More
2825 When writing raw DCT coefficients, it is crucial that the JPEG quantization
2936 Some operating modes (eg, two-pass color quantization) require full-image
2980  4. To perform 2-pass color quantization, the decompressor also needs a
2987 quantization pixel buffer.  The "fixed-size" data will be somewhat smaller
2998 for color quantization.  Also, it needs a full-image DCT coefficient buffer
3025 You may also want to supply your own DCT quantization tables; the existing