| CPC H04N 9/3182 (2013.01) [G03B 21/2033 (2013.01); H04N 9/3158 (2013.01)] | 5 Claims |
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1. A display apparatus for displaying video made by laser light, the display apparatus comprising:
at least one laser of which the light output varies in accordance with current;
a memory that stores at least one conversion table for correcting one or more first input shade levels relating to image data such that current-light output characteristics of the laser approximate to desired characteristics, the conversion table storing multiple first input shade levels, multiple second input shade levels, and multiple output shade levels that are in association with one another; and
control circuitry configured to:
convert a first input shade level relating to the image data into a second input shade level that is in association with the first input shade level in the conversion table, and
cause the at least one laser to emit light based on an output shade level that is in association with the second input shade level in the conversion table, such that the output shade level linearly increases in accordance with an increasing first input shade level,
wherein for each of one or more first input shade levels among multiple first input shade levels relating to the image data, the conversion table enables a first magnitude of the first input shade level to change to a second magnitude of a corresponding second input shade level, so that the output shade level varies linearly with the second magnitude of the second input shade level, and
wherein the first magnitude is different from the second magnitude.
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