Differences
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| Both sides previous revisionPrevious revision | |
| code:fpga_map_gen5 [2024/04/04 13:09] – [Standard image adjustments] Igor Yefmov | code:fpga_map_gen5 [2024/04/17 22:16] (current) – [Color grading] Igor Yefmov |
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| |:::|:::|:::|''6:1'' index LSB| index into a page in the table | | |:::|:::|:::|''6:1'' index LSB| index into a page in the table | |
| |:::|:::|:::|''0'' access mode| ''0'': "normal mode", in which all the subsequent accesses to the register ''0x002F'' are governed by the values in ''0x002E''\\ ''1'': "bulk access", where after a read or write access to register ''0x002F'' the "Index" value will auto-increment by one so that the next read/wrie will access the subsequent table slot| | |:::|:::|:::|''0'' access mode| ''0'': "normal mode", in which all the subsequent accesses to the register ''0x002F'' are governed by the values in ''0x002E''\\ ''1'': "bulk access", where after a read or write access to register ''0x002F'' the "Index" value will auto-increment by one so that the next read/wrie will access the subsequent table slot| |
| |:!: Value|''0x2F''|R/W|''15:0'' value| 16 bits of either signed or unsigned integer value\\ - for a "Hue vs. Hue" table the 14 bits signed value is in range ''[-8192..+8192]'' which maps linearly into a Hue angle range ''-180°..+180°''\\ - for a "Hue vs. Saturation" table (as well as for similar tables %%LvS%% and %%SvS%%) the 12 bit unsigned value in range ''[0..+1280]'' maps linearly into a Saturation range ''[0%..1000%]'' where ''100%'' is the neutral position and ''0%'' produces a greyscale image\\ - (until FPGA v.72) for a "Lightness vs. Lightness" table (as well as for similar table %%HvL%%) the 12 bit unsigned value in range ''[0..+4095]'' maps linearly into a Lightness absolute range ''[0..255]'' where ''0'' is pitch black and ''255'' is the maximum possible pixel luminosity value\\ - (starting with FPGA v.73) for a "Lightness vs. Lightness" table (as well as for similar table %%HvL%%) the 13 bit signed value in range ''[-4096..+4095]'' maps linearly into a Lightness *relative* (adjustment) range ''[-256..255]'' where ''0'' is no adjustment to pixel luminosity value| | |:!: Value|''0x2F''|R/W|''15:0'' value| 16 bits of either signed or unsigned integer value\\ - for a "Hue vs. Hue" table the 14 bits signed value is in range ''[-8192..+8192]'' which maps linearly into a Hue angle range ''-180°..+180°''\\ - for a "Hue vs. Saturation" table (as well as for similar tables %%LvS%% and %%SvS%%) the 12 bit unsigned value in range ''[0..+1280]'' maps linearly into a Saturation range ''[0%..1000%]'' where ''100%'' is the neutral position and ''0%'' produces a greyscale image\\ - for a "Lightness vs. Lightness" table (as well as for similar table %%HvL%%) the 13 bit signed value in range ''[-4096..+4095]'' maps linearly into a Lightness *relative* (adjustment) range ''[-256..255]'' where ''0'' is no adjustment to pixel luminosity value| |
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| ===== Media setup ===== | ===== Media setup ===== |
