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• Measuring objects
  ...a collection of pixels. Then the coordinates of the center of mass is the average of all coordinates of the pixels. ...gray level, ''average intensity'', also makes sense. And so does average color. For more see [[Intensity]].
  9 KB (1,526 words) - 16:52, 2 January 2011
• Measure vegetation coverage
  ...saving them in separate files, then processing each. One correctly chosen color replacement can be repeated in all images... Q. "Do you think any particular [single] color would better facilitate image analysis with Pixcavator?"
  7 KB (1,239 words) - 16:21, 4 March 2011
• Pixcavator releases
  *Changing the [[Color image analysis|color channels]] after processing causes messed up data in the [[Output tab]]. *Your choice of color channels in the [[Analysis tab]] is preserved when you load a new image to
  19 KB (3,032 words) - 03:59, 30 September 2010
• Measuring staining in the liver
  ...t you've chosen, in this case "Green". (The ability to compute the average color with respect to all three channels is still under development.) [[Image:Liver3-ss.jpg|500px|another image of liver analyzed with Pixcavator, average intensity]]
  3 KB (514 words) - 14:06, 7 October 2010
• Calculus of sequences
  [[image:color spectrum.png| center]] '''Definition.''' The ''mean'' (or the average) of a quantity given by $n$ numbers $a_1,...,a_n$ is defined to be:
  113 KB (18,425 words) - 13:42, 8 February 2019
• Immunohistochemistry on lung biopsies
  ...more pronounced because what is displayed is the average not the weighted average. So, one large, darker object is outweighed by smaller, lighter ones. If yo ...rkness! That's why you have much fewer objects in the second image but the average darkness is the same. Instead you have to find new settings for the second
  4 KB (597 words) - 14:19, 7 October 2010
• Tutorial
  *''average contrast'' (saliency/size), ...sity inside the object from that of the surrounding area. It’s called '''[[Average contrast]]'''.</p>
  15 KB (2,525 words) - 16:16, 23 May 2010
• A graph, non-tree representation of the topology of a gray scale image by Saveliev
  ...age modifications. Further research directions are: [[color image analysis|color images]], [[video image analysis|video]], and [[morphology]]. ...ult, it can be extended to gray scale images and to [[color image analysis|color images]], video, etc.
  41 KB (6,854 words) - 15:05, 28 October 2011
• Report generation
  ...or the image file: xxxx.xxx" followed by the scaling factor and the chosen color channel. This data comes from Pixcavator's '''Analysis''' tab. *'''Gray''': the average gray level inside the contour = average [[intensity]],
  5 KB (731 words) - 15:48, 24 April 2010
• Output tab
  *''average contrast'' (saliency/size), ...inside the object from that of the surrounding area. It’s called the '''[[Average contrast]]'''.</p>
  10 KB (1,684 words) - 21:02, 13 June 2010
• Microarray analysis
  ...n start to divide faster, or slower, or simply die. The result affects the color of the substance in each cell. The image analysis automatically captures th ...[intensity]], or the [[standard deviation]], or the [[average color]] (for color images), etc.</p>
  2 KB (317 words) - 15:00, 9 October 2010
• Modeling with discrete exterior calculus
  ...in those cells does not change noticeably before the program terminates). Color indicates temperature on a ROYGBV spectrum, where red indicates higher temp ...ter cell that began with $T=10000$). So using the [[distance formula]], an average radius can be determined. This does change over time, so here is a graph of
  31 KB (5,254 words) - 17:57, 21 July 2012
• Fields related to computer vision
  “Analysis” is simply too broad. Indeed, does finding the average color in the image qualify as analysis? Yes, of course. Does it tell as anything <li>anything based on color/[[intensity]] [[histogram]],</li>
  9 KB (1,379 words) - 01:26, 22 February 2011
• Pixcavator image search
  ...are “good” in the sense that they have clear pattern (based on shapes not color). However, this standard is hard to [[Precision and recall|quantify]] as it <em>(average distance to its 7 versions) / (average distance to all images) * 100.</em>
  8 KB (1,348 words) - 03:14, 29 August 2010
• Colorant dispersion
  ...nable to isolate the small black dots exclusive of the horizontal bands of color. Do you think it is possible to isolate only the black dots and recognize ...d to set a low limit on the [[size]] and high limits on [[contrast]] and [[average contrast]]. After a bit of trial and error I found limits that work: 20, 60
  2 KB (349 words) - 16:23, 4 March 2011
• Cell counting
  ...classify them based on color -- by choosing the appropriate [[RGB channels|color channel]]. ...and then subtract the inside area from the outside and then divide by the average of the two [[perimeter]]s. This will give you a decent estimate of the thic
  6 KB (804 words) - 15:52, 12 November 2011
• Limits and continuity
  ...nvironment. We start with pass/fail. The outcome depends on your total (or average) score. A threshold is typically assigned: if the score is above it, you pa We will often color the numbers according to their values. This is the summary of the functions
  107 KB (18,743 words) - 17:00, 10 February 2019
• Nested boundaries
  ...Because the area is covered several times by these objects. If you click "Color objects", you'll see one large object with red contour and many others insi ...sted contours. This can and does happen with the [[border contrast]] and [[average contrast]] sliders (both screenshots). These two parameters aren't "monoton
  2 KB (403 words) - 19:03, 26 May 2010
• HP Slate
  *formulas broken into parts based on color; *The buttons are just a bit too small for my (average sized) fingers.
  1 KB (207 words) - 17:58, 6 March 2011
• Image scaling
  ...pixels. Then the value of this pixel (the gray level of the color) is the average of those four.
  2 KB (273 words) - 20:54, 14 August 2010

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