Adjust sharpness parameters

A system, comprising:

• a thermal printer including a thermal print head;
• a thermally activated print medium;
• and
• a controller to:
• receive print data comprising color channels corresponding to print pixels to be formed on a multi-layer thermally activated print medium;
• for color channels of the received print data, determine a temperature and duration of the temperature to be applied to each corresponding layer of the multi-layer thermally activated print medium based on the received print data;
• individually adjust sharpness parameters of the color channels based on the determined temperature and duration of the temperature to be applied to each corresponding layer of the multi-layer thermally activated print medium, wherein the sharpness parameters include at least one of a sharpening radius and a sharpening intensity of each color channel;
• and
• cause the thermal print head of the thermal printer to apply thermal energy to an area of the multi-layer thermally activated print medium including the print pixels for the temperature and the duration using the adjusted sharpness parameters.

A method, comprising:

• receiving, by a controller, print data comprising color channels corresponding to print pixels to be formed on a multi-layer thermally activated print medium by a thermal print head of a thermal printer;
• determining, by the controller, a blur characteristic of at least one of:
• a yellow color channel corresponding to a yellow layer of the multi-layer thermally activated print medium;
• a magenta color channel corresponding to a magenta layer of the multi-layer thermally activated print medium;
• and
• a cyan color channel corresponding to a cyan layer of the multi-layer thermally activated print medium;
• determining, by the controller, a temperature and a duration of the temperature to be applied to each of the yellow layer, the magenta layer, and the cyan layer of the multi-layer thermally activated print medium based on the received print data;
• adjusting, by the controller, individual sharpness parameters included in the print data of at least one of the yellow color channel, the magenta color channel, and the cyan color channel based on:
• the blur characteristics of the yellow layer, the magenta layer, and the cyan layer;
• and
• the determined temperature and duration of the temperature to be applied to each of the yellow layer, the magenta layer, and the cyan layer;
• and
• applying thermal energy, by the thermal print head of the thermal printer, to the area on the thermally activated print medium including the print pixels for the temperature and the duration using the individually adjusted sharpness parameters of the yellow, the magenta, and the cyan color channels.