초록 ▼

A device is described in which a visual image can be enhanced to better recognize different objects that appear in a picture. Means are provided for an operator to manipulate a visual image by adjusting darkness levels within each primary color to embellish the recognition of distinct objects which

A device is described in which a visual image can be enhanced to better recognize different objects that appear in a picture. Means are provided for an operator to manipulate a visual image by adjusting darkness levels within each primary color to embellish the recognition of distinct objects which may appear in the visual rendering. The device may be implemented as a ground-based system where the operator can adjust the algorithm to manipulate the darkness levels of a certain number, N, of pixels. A second implementation can be achieved in a helmet mounted display or glasses donned by an operator.

대표청구항 ▼

What is claimed is: 1. An image enhancement device comprising: visual data of a desired object within a compressed image; a central processing unit for receiving said visual data; a plurality of histograms, generated by said central processing unit, of frequency of pixels versus darkness level with

What is claimed is: 1. An image enhancement device comprising: visual data of a desired object within a compressed image; a central processing unit for receiving said visual data; a plurality of histograms, generated by said central processing unit, of frequency of pixels versus darkness level within each primary color red, blue and green of said visual data; a parabolic template constructed by said central processing unit with the vertex of the parabola appearing at the mean distribution of the total area under the histogram curve; means for overlaying a true histogram from said visual data and said parabolic template; a spatial gradient of all candidate pixels generated by said central processing unit; N number of pixels with maximum gradients moved through operator adjustment; and an output signal of an enhanced visual image of said desired object transferred from said central processing unit to said operator. 2. The image enhancement device of claim 1 further comprising multi-spectral sensors on an operator wearing a head mounted display for receiving said visual data. 3. The image enhancement device of claim 1 further comprises an operator wearing an eye-glass system for receiving said visual data. 4. The image enhancement device of claim 1 wherein said N number of pixels further comprises N number of pixels with maximum gradients moved left to zero or pure black through operator adjustment. 5. The image enhancement device of claim 1 wherein said N number of pixels further comprises N number of pixels with maximum gradients moved right to one or pure white. 6. The image enhancement device of claim 1 wherein said visual data further comprises visual data of a desired object within a compressed .jpg image. 7. The image enhancement device of claim 1 wherein said means for overlaying further comprises means for overlaying a true histogram from said visual data and said parabolic template where a vertex of said parabolic template touches an x-axis. 8. The image enhancement device of claim 1 wherein said means for overlaying further comprises: a preselected darkness level threshold; means for first setting a darkness level to zero when, for each pixel, the darkness level is less than or equal to said threshold; and means for second setting a darkness level to one, when for each pixel, the darkness level is greater than the threshold. 9. The image enhancement device of claim 8 wherein said preselected darkness level threshold further comprises a preselected darkness level threshold of 0.5 for a darkness level varying between 0 and 1. 10. The image enhancement device of claim 1 further comprising means for reassigning pixels as black white. 11. The image enhancement device of claim 1 wherein said spatial gradient further comprises a spatial gradient of all candidate pixels and means for rank ordering said spatial gradients in terms of magnitude. 12. The image enhancement device of claim 1 wherein N number of pixels further comprises N number of pixels with maximum gradients moved through operator adjustment knob manipulation. 13. The image enhancement method of claim 1 wherein said visual data further comprises visual data of a desired object within an 8-bit color compressed image. 14. An image enhancement device comprising: visual data of a desired object within a compressed image using multi-spectral sensors from an operator wearing a head-mounted display; a central processing unit for receiving said visual data; a plurality of histograms, generated by said central processing unit, of frequency of pixels versus darkness level within each primary color red, blue and green and means for selecting the most highly uncertain color; a parabolic template constructed by said central processing unit with the vertex of the parabola appearing at the mean distribution of the total area under the histogram curve; means for overlaying a true histogram from said visual data and said parabolic template comprising: a darkness level threshold of 0.5 for a darkness level varying between 0 and 1; means for first setting a darkness level to zero when, for each pixel, the darkness level is less than or equal to said threshold; and means for second setting a darkness level to one, when for each pixel, the darkness level is greater than the threshold; a spatial gradient of all candidate pixels generated by said central processing unit; N number of pixels with maximum gradients moved through operator adjustment knob manipulation; an output signal of an enhanced visual image of said desired object transferred from said central processing unit to said operator.