1. Fixed key input apparatus comprising a plurality of keys to generate input signals corresponding to each letter of the alphabet wherein the keys are arranged with a horizontal key spacing, centerline to centerline, of 10.8 to 16.4 millimeters and a vertical key spacing, centerline to centerline of 10.8 to 18.0 millimeters.
2. The input apparatus of claim 1 wherein the alphabet is English and the input apparatus comprises at least 26 keys.
3. The input apparatus of claim 1 or 2 further comprising keys to generate input signals corresponding to each numeral.
4. The input apparatus of claims 1 to 3 wherein the numerals are arabic numerals and the input apparatus comprises at least 36 keys.
5. The input apparatus of claims 1 to 4 further comprising keys for generating signals corresponding to a function to be undertaken.
6. The input apparatus of claims 1 to 5 wherein the function to be undertaken is selected from the group consisting of: shift, return, control, alt, tab, caps lock, home, end, page up, page down, clear, scroll lock and combinations thereof.
7. The input apparatus of claims 1 to 6 wherein the individual key width is 7.2 mm to 13 mm.
8. The input apparatus of claims 1 to 7 wherein the individual key depth is 7.2 mm to 15 mm.
9. The input apparatus of claims 1 to 8 wherein the individual keys are a ranged in a qwerty layout.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An article comprising a computer-readable storage medium containing instructions that when executed by a processor enable a system to:
determine a histogram with a plurality of bins based on luminance for an image;
decrease a tone differential of a sum of pixel counts of adjacent bins; and
display the image based at least in part on a tone differential of a bin.
2. The article of claim 1 wherein instructions that when executed enable the system to decrease a tone differential comprise instructions that when executed enable the system to:
set a total pixel count to a sum of a first pixel count of a first bin and a second pixel count of a second bin, wherein the second bin is adjacent to the first bin, and
when the total pixel count is less than a pixel threshold, decrease a tone differential of the first bin.
3. The article of claim 1, further comprising instructions that when executed enable the system to increase a tone differential of a bin having a higher density.
4. The article of claim 2, further comprising instructions that when executed enable the system to determine the pixel threshold based on a total number of pixels in the image.
5. The article of claim 1 wherein instructions that when executed enable the system to decrease a tone differential comprise instructions that when executed enable the system to decrease the tone differential to zero.
6. The article of claim 1 wherein instructions that when executed enable the system to display the image comprise instructions that when executed enable the system to determine a tone mapping table.
7. The article of claim 6 wherein instructions that when executed enable the system to determine a tone mapping table comprise instructions that when executed enable the system to set the tone mapping table equal to a sum of a tone differential of a first bin and a tone mapping value of an adjacent bin.
8. The article of claim 1, further comprising instructions that when executed enable the system to determine a luminance of the image.
9. The article of claim 1 wherein a bin represents a luminance value.
10. The article of claim 1, further comprising instructions that when executed enable the system to initialize a tone differential in a bin to equal one.
11. A method comprising:
determining a histogram with a plurality of bins based on luminance for an image;
decreasing a tone differential based on a sum of pixel counts of adjacent bins; and
displaying the image based at least in part on a tone differential of a bin.
12. The method of claim 11 wherein decreasing a tone differential comprises:
setting a total pixel count equal to a sum of a first pixel count of a first bin and a second pixel count of a second bin, wherein the second bin is adjacent to the first bin; and
when the total pixel count is less than a pixel threshold, decreasing a tone differential of the first bin.
13. The method of claim 11, further comprising:
increasing a tone differential of a bin having a higher density.
14. The method of claim 11 wherein decreasing a tone differential comprises decreasing the tone differential to zero.
15. The method of claim 11 wherein displaying the image comprises determining a tone mapping table.
16. A system, comprising:
a sensor;
a processor communicatively coupled to the sensor; and
a memory communicatively coupled to the processor, the memory to store an adaptive display module that when executed by the processor is operative to determine a histogram with a plurality of bins based on an image, decrease a tone differential based on a sum of pixel counts from adjacent bins, and display the image based at least in part on a tone differential of a bin.
17. The system of claim 16 wherein the adaptive display module that when executed by the processor is operative to decrease a tone differential comprises the adaptive display module that when executed by the processor is operative to:
set a total pixel count equal to a sum of a first pixel count of a first bin and a second pixel count of a second bin, wherein the second bin is adjacent to the first bin, and
when the total pixel count is less than a pixel threshold, decrease a tone differential of the first bin.
18. The system of claim 16 wherein the memory to store an adaptive display module that when executed by the processor is operative to increase a tone differential of a bin having a higher density.
19. The system of claim 16 wherein the adaptive display module that when executed by the processor is operative to display the image comprises the adaptive display module that when executed by the processor is operative to determine a tone mapping table.
20. The system of claim 16 wherein the memory to store an adaptive display module that when executed by the processor is operative to determine a luminance of the image.