Research the causes of related medical symptoms such as: 1  Eye. 2  Eye symptoms (5412 causes) 3  Eye disease. 4  Eye disorder. 5  Eye problem (5412 causes) 6  Eye pain (475 causes) 7  Itch (1068 causes) 8  more symptoms...Â».
How to read the Histogram. A histogram is a graphical representation of the pixels exposed in your image. The left side of the graph represents the blacks or shadows, the right side represents the highlights or bright areas and the middle section is mid-tones (middle or 18% grey).
Create a histogram. To enter the data that you want to analyze in a histogram, do one of the following: Copy the example worksheet data to your worksheet. How to copy the example worksheet data. Create a blank workbook or worksheet.Select the example in the Help topic. Note Do not select the row or column headers.reate a histogram. To enter the data that you want to analyze in a histogram, do one of the following: Copy the example worksheet data to your worksheet. How to copy the example worksheet data. Create a blank workbook or worksheet. Select the example in the Help topic.