Lines Matching refs:quality
70 * The spec says that the values given produce "good" quality, and
71 * when divided by 2, "very good" quality.
98 /* Set or change the 'quality' (quantization) setting, using default tables
99 * and straight percentage-scaling quality scales.
115 /* Set or change the 'quality' (quantization) setting, using default tables
116 * and a straight percentage-scaling quality scale. In most cases it's better
130 jpeg_quality_scaling(int quality)
131 /* Convert a user-specified quality rating to a percentage scaling factor
133 * The input 'quality' factor should be 0 (terrible) to 100 (very good).
136 /* Safety limit on quality factor. Convert 0 to 1 to avoid zero divide. */
137 if (quality <= 0) quality = 1;
138 if (quality > 100) quality = 100;
140 /* The basic table is used as-is (scaling 100) for a quality of 50.
146 if (quality < 50)
147 quality = 5000 / quality;
149 quality = 200 - quality * 2;
151 return quality;
156 jpeg_set_quality(j_compress_ptr cinfo, int quality, boolean force_baseline)
157 /* Set or change the 'quality' (quantization) setting, using default tables.
158 * This is the standard quality-adjusting entry point for typical user
164 quality = jpeg_quality_scaling(quality);
166 /* Set up standard quality tables */
167 jpeg_set_linear_quality(cinfo, quality, force_baseline);
206 /* Set up two quantization tables using default quality of 75 */