Histogram
"Goldilocks and the Three Histograms"
More and more consumer digital cameras are now including a histogram display either during the Record mode or in the Playback mode.
Histograma
Un histograma es un gráfico de barras. Usamos histogramas en fotografía para mostrar cuántos pixeles de cada valor hay en una fotografía. Cada pixel en tu foto tiene un valor de 0 (que es negro) a 255 (que es blanco).
Histogram Palette
A palette in Photoshop that allows making changes in tonal values using controls that adjust the white, middle gray, and black points of an image.
Histogram
From Nikonians Wiki - FAQs, Photo Glossary, Good Photo Locations, Help
Jump to: navigation, search ...
Channel Histograms
The grayscale Histogram does not tell the entire story. It essentially takes the information from the three color channels (i.e., the red, green, and blue channels) and calculates a grayscale tonality.
histogram photoshop adobe adobe photoshop Adobe Photoshop CS4 advanced AEB digital HDR HDRI high dynamic range hints how-to how-to tip Jack Howard photography photoshop techniques TechTock adjustment adjustment layer adorama camera digital camera ...
The histogram indicates there are a lot of pixels with value 0 or close to 0, which is an indication of "clipped shadows". Some shadow detail is lost forever as explained in the dynamic range topic.
Histograms
A histogram shows how the 256 possible levels of brightness are distributed in an image.
Histogram
Techniques Glossary Histogram
A chart with a vertical scale showing the tonal values of a digital photo.
Histogram examples
As you can see by the image below, it was underexposed (too dark). There is very little detail seen in the tree's, footpath and two people on the left.
A histogram tells you about the level of exposure in a photo
A histogram usually contains densely arranged columns that represent the lightness or darkness of the photo.
The Histogram
The histogram is a graph that shows you the distribution of tones — shadows, midtones, and highlights — within your photograph.
Using Histograms While Shooting
So now you know what a histogram is - grab your digital camera's manual and work out how to switch it on in playback mode.
HISTOGRAM AND RGB COLOR AND TONAL RANGE EXPLANATION - Part 2
There are three different kinds of histograms. The most commonly used is the RGB histogram.
Histograms & Highlight Warnings
Click to explore histograms.
Click to explore how overexposed highlights blink.
Histograms weren't invented by camera manufactures (or Adobe for use in Photoshop either). In fact, they come from the field of statistics where they are used to graphically show the distribution of values within a set of data points.
The histogram of a good photo
The Histogram of an Underexposed Photo
Ok, now let's look at the histogram of an underexposed photo. You can see a spike in the shadows that starts with a peak on the left of the graph.
The histogram basically is a graph that represents the maximum range of light values your camera can capture, in 256 steps.
When we view the histogram of a picture, we're looking at the extent of color information contained in a photo. A dark photo will have the bulk of the data on the far left side of the chart, while a "daylight" photo will be somewhere in the middle.
Histogram (wildlife and scenics): check your histogram often! Over the years teaching digital photography, I’ve seen a trend develop. In that I came from the school of shooting slide film, it’s a bit disconcerting.
Histogram
Histogram is a graphical chart that displays the intensity of tones within an image ranging from the whitest white to the blackest black, in which each tone is given a value of 0 to 256, with 0 being very dark and 256 being very light.
Histogram - This is a graph that represents the distribution of different colors in an image.
Hot Shoe - This is used to attach an extra flash to the camera.
Histogram A graphic representation of the range of tones from dark to light within a photo. Some digital cameras include a histogram feature that enables a precise check on the exposure of the photo.
Histogram
A graph of brightness along the horizontal axis (black to white) and the number of pixels at each brightness level on the vertical axis.
Highlight ...
Histogram, Hyperfocal distance
Histogram this is the bar chart you often see in the Levels controls of image editing software such as Adobe Photoshop.
Histogram
A bar graph analysis tool that can be used to identify contrast and dynamic range image problems. Histograms are found in most software programs that are used to manipulate digital images.
I ...
Histogram - A bar like graph that shows the distribution of gray tones in an image.
Histogram. A histogram is a bar graph analysis tool that is used to identify contrast and dynamic range of any image.
Histograms
Digital SLRs come with a histogram display so that you can tell how an image is exposed.
Histogram
A graphical representation of tonal and color distribution in a digital image. This is typically based on a particular color or working space by plotting the number of pixels for each tonal/color value.
Histogram. A graph that represents the distribution of pixels brightness within a digital image.
Highlights. The brightest parts of an image containing detail.
Histogram
A graph that shows the brightness distribution (by depicting the distribution of dark and bright pixels) for a scene. The data can be used to judge the exposure of the picture. Histograms are sometimes found in high-end digital cameras.
Histogram
A graphic representation of how brightness and darkness pixels are distributed in an image. A histogram skewed heavily to the left indicates a dark image, while a histogram skewed to the right indicates a light image.
Histogram
A visual representation of the exposure values of a digital image.
Camera Histogram
You can program your camera so you can see the histogram at the moment of capture, or you can review your histogram later on the camera’s LCD or the computer screen.
[edit] Histograms and the Zone System
Most high-end digital cameras allow viewing a histogram of the tonal distribution of the captured image.
Histogram
A sloping graph, resembling a mountain range with peaks and valleys, that illustrates the exact range of tones the image sensor has captured for a particular shot.
Histogram
When you select 'histogram' from the menu of your camera, you'll see the image you want to photograph, with date, time, exposure settings and other information. Next to the image is the histogram graph.
Histograms
By examining the in-camera histogram, it's possible to get a better idea of the tonal distribution in the image.
Histogram: A vertical bar graph displaying the distribution of the tonal values of the pixels in an image. The X axis represents the tonal value of the pixels (0-255) and the Y axis represents the number of pixels having that tonal value.
I ...
histogram equalization
of source photo brightened source photo canny edge detector
more ...
Histogram
A histogram is a graph of an image, showing brightness along the horizontal axis and pixel numbers at each brightness level along the vertical.
A histogram shows the exposure or range of tones in your image as digital information.
The histogram is particularly useful with high-contrast shots, where you have very bright and very dark areas. You can't expose for both properly in the one picture - and you need to decide where detail is most important.
The color histogram gives you an overview of the distribution of the three basic colors (Red, Green and Blue) as well as the combination of the three (white).
If you see a histogram hit the wall to the left, you've underexposed and are missing shadow detail. If you see a histogram hit the wall to the right, you've overexposed and are missing highlight detail.
Looking at the histogram above, there is visible empty space on either side of the mountainous range, this means there are no dark shadows or bright highlights in the image.
dates of births, marriages, deaths, names and places Highlights The brightest parts of a photo Histogram A graphic representation of the range of tones from dark to light in a photo.
Histogram A histogram is a graph of number of pixels versus pixel value. Pixel values run from lowest (displayed as black) to highest (displayed as white).
So if your camera's histogram or blinkies tell you you've clipped a few of your highlights you might be able to save them during raw conversion(remember the in camera histogram is a JPEG histogram and doesn't show the extra exposure latitude of the ...
Another good piece of advice I find helpful when shooting a concert is to look at your camera's settings and the histograms often when shooting the first song (assuming you only get three) and use that time to make the necessary adjustments for the ...
A histogram will open up. Slide the white triangle on the right until it lines up with the first peak on the right side of the histogram. Slide the black triangle on the left until it lines up with the first peak on the left side of the histogram.
In digital image processing, a histogram is a graph representing the statistical frequency of the gray values or the color values in an image.
The graph that you see in the upper portion of the Levels dialog is called the "Histogram". It is a count of the number of points in an image that are a certain brightness.
The Olympus E-3 lets you do pretty much everything, even view a live histogram, just like the better digicams. Same for the Sony I mentioned. Some of the other models are little more than viewing systems.
The graph is called a histogram and is showing the tonal range of the image with the shadows on the left, the midtones in the middle and the highlights on the right.
Below is a less severe histogram stretch, though even this is significantly more adjustment than you'd ever use on a real world image. The two major dust spots are quite visible, along with a few others.
It displays the picture's levels histogram and allows you to manipulate it with a few simple but effective controls.
Exposure - you need to check your display and/or histogram to ensure a proper exposure. With my TTL converter I almost always have a proper exposure, but sometimes I'll need to adjust my TTL converter up or down.
After taking a few pics and just deleting them, I started keeping them and looking at the histograms. All of them were really squashed down the left. hmmm.. I decided to just keep taking pics and worry about them later.
 See also: Camera, Image, Photograph, Light, Digital
|
