How to cut certain frequencies

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• How determine the crossover frequency

  I'm having a hard time to understand how the high-pass filter determines vs high frequency. What value it measures. ? A change of RGB values or contrast? I see the sharpness of words or blur, but what values determine the amount of blur or sharpening? Is there and the actual frequency being high or is it just a metaphor to compare it to the audio crossover?

  No details on the workings of this filter is appreciated.

  A few additional explanations:

  Audio signals:
  frequency = cycles per second
  It is the frequency in the time domain.
  An arbitrary signal can be represented by a set of harmonic signals (sine, cosine)
  In addition, some DC (direct current, non-periodic component).
  A typical high-pass filter for audio signals:
  The cut-off frequency fc is at the transition between the increase in gain
  (low frequencies) and fixed gain 1.0 (high frequency).
  frequency reduction (mitigation)
  CF 0.01 0.01
  CF 0.10 0.1
  CF 1,00 0.707
  10.0 fc 1.0
  100 CF 1.0

  A typical high-pass filter for digital images:
  frequency = cycles per unit of length or (better) cycles per pixel
  It is the frequency in the space field.
  The highest frequency is 0.5 cycles per pixel (alternation of black and white pixels)
  A line of arbitray in a digital image can be represented by a set of harmonic signals
  In addition, DC-part.
  Each channel that r, G, B is filtered individually, one after the other.
  Frequency and gain are as above.

  A high pass filter applies to mitigation<1 to="" low="" frequency="" signal="">
  and removes the DC component entirely. This would result in a black background.
  Therefore, the background is extended to R = G = B = 128 (8 bits per channel) or
  R = G = B = 0.5 (standard).

  Edges contain stronger high-frequency components. These are preserved.

  http://en.Wikipedia.org/wiki/high-pass_filter

  In this doc, we find a simple implementation:
  y [0]: = x [0]
  for i from 1 to n
  y [i]: = a * y [i-1] + a * (x [i] - x [i-1])
  return y

  x [i] are values of R (or G or B) row in column i in the original image
  y [i] are values of R (or G or B) on the same line in column I after filtering.
  Factor (a) indirectly contains the cutoff frequency.
  This example does not yet apply the SHIFT R = G = B = 128.

  The implementation can be different (filter not recursive instead of recursive, as indicated above,
  higher order instead of first order, using a filter kernel 3 * 3 5 * 5 pixels instead of work
  in each row independently).

  I'm not trying to explain how Photoshop!  There are so many alternatives.

  Cordially - Gernot Hoffmann

• How to cut and paste ppt slides in presentations?

  How to cut and paste ppt slides in presentations?

  File > open

  and it should do the conversion for you.

• How to cut audio tracks with tool blade?

  Hello

  I recently made the switch from fcp7 to fcpx and I'm having a real hard time! There are many things that I can't understand how to do, and it's just one of them:

  Solo Cup audio tracks with the blade tool (or another medium, if there is). Can I cut the audio clips on one side, but how I cut a piece in the middle of the clip?

  Thank you!

  YYou can't cut with the blade tool? Or select it, and press Cmd - B of type point skimmer/reading

• How to block certain websites?

  I would like to know how to block certain websites like MTV, because I do not want my children to watch some videos... urgent please!

  I think that you are not in the right forum with this theme because it has nothing to do with Toshiba laptops.
  Anyway, what you can do is to block all Web sites in your router configuration. Router password together and nobody can change anything so you will have full control over the content that should not be visible for your children.

• Satellite Pro 6100: LED flashes at a certain frequency

  Mentioned this problem in another article

  Power adapter gives green LED and charge the battery. So far so good, but...
  After pressing the button ON / OFF, nothing happens. Do not use is not the main adapter but the battery gives no change.
  Only the DC IN - LED flashes at a certain frequency:
  short-long-short-Short-Short-Short-short-long,
  Morse code:.-... -.
  in BIN: 01000001

  Nothing happens... Sytem stays down

  I bought a new battery but no change.

  What can be wrong?

  Manusje

  The blink code is displayed if there is something wrong with the hardware.
  Code: 0100 0001 should read it back 1000 0010 = 82 h

  The Toshiba service partner should know what is the meaning by mistake 82 h
  You should ask him for help.

  Please check this forum announcement:
  http://forums.computers.Toshiba-Europe.com/forums/thread.jspa?threadID=12799&MessageID=46635

• Do you know how to copy certain tasks in the calendar and the past on different days?

  Do you know how to copy certain tasks in the calendar and the past on different days?

  This year, I even tasks to every month, so it is difficult for me to create new tasks for the same information. I can't find how to copy beyond the tasks, so if someone could help me I aprecciate it.

  Thanks in advance!

  Select, press COMMAND = C to copy it to the Clipboard; Select the date that you want a copy with the mouse, them press COMMAND\-V to paste. If you want a repetitive task, you can select the item and double-click it to open it, and then the pop up config, select repeat.

• How to measure the frequency of a clock using meter in LabVIEW?

  Hi guys,.

  Someone knows how to measure the frequency of a signal introduced in LabVIEW (in the FPGA PXI-7813R), using a counter in LabVIEW?

  Essentially, I want to use this counter as a kind of Logic Analyzer.

  Thank you, Anoop

  I don't know what you mean by "manual".  It is all managed in a housing structure.

  

• How to cut a shape of the object a picture and put it in its own?

  Photo cut and save

  How to cut a headshout of one person on a phot with several people in it and then save it as it's own photo?

  You might cut back on the part you want to save as a
  new photo.

  (be aware... If the original photo is not high quality...
  your cropped section can be grainy)

  Many photo editors have the ability to crop but since
  I don't know what you have installed... I'm going to suggest
  Windows Paint... (Start / Programs / Accessories /)
  Paint) to help you get started.

  Try to open the picture in paint.

  File / open... Find and select your photo.

  In the top left panel, left click the Select button.
  (looks like a rectangle made up of points)

  Left click / drag a rectangle around the portion of the photo
  that you want to copy.

  Now, you'll see a dotted line around the selected area.

  Reach... Edition / copy.

  Reach... File / new.

  Reach... Editing / paste.

  Reach... File / save as.

  Choose a backup folder.

  Enter a name.

  Choose a format (JPEG).

  On the left, click on the "Save" button.

• On movie maker how to cut movie in two parts on separate disks

  movie maker how to cut film into two parts and then burn each part on a different DVD

  Hello

  My friend John Papa - MVP - is the expert on Windows Movie Maker.

  PapaJohn.org
  http://Papajohn.org/

  PapaJohn - online tutorials
  http://www.Papajohn.org/mm2-online-tutorials.html

  Windows Movie Maker Tutorials - check the sounds of the addition in the left menu and others on the
  main screen.
  http://www.windowsmoviemakers.NET/tutorials/

  Windows Live Movie Maker help & how-to and Forums are good sources of information:

  Windows Essential - Movie Maker help
  http://Windows.Microsoft.com/en-us/Windows-Live/Essentials-Help-Center?T1=T3

  Answers - Windows Essentials - Microsoft Windows Movie Maker Forums
  http://answers.Microsoft.com/en-us/windowslive/Forum/MovieMaker?tab=threads
  ====================

  These might help:

  Getting started with Windows Movie Maker

  Import video, photos and audio on Windows Movie Maker

  Import video from a videotape

  Get a movie in Windows Movie Maker

  Make a movie quickly in Windows Movie Maker (AutoMovie)

  Publish a movie in Windows Movie Maker

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• How to find the frequency in the cureent network band to blackberry.

  Hello

  How to find the frequency in the cureent network band to blackberry.

  There is no API that exposes this information on a BlackBerry smartphone.

• How to cut this image?

  Hey guys, I have an image that I need to cut (remove background) and the background is almost in the same color as the hair. So the question is how I cut

  the brown background woman hair? Example: [I tried the eraser/clone stamp/magic wand but it looks like always * honestly.]

  

  A great idea as always of Norman.  I was going to go in the same sense that Christoph starting by the RAW file, which would have had much more potential for a background of contrasting color, then use them in calculations.  This is something I have not started that recently aid after that see http://www.nathanjosephdodson.com/Nathaniel Dodson on Tutvid testify, so I still homing on best practices, but using green red the value Add and -40 was the best I've had.

  You would still do better starting with the RAW file.  Treat twice and the brighter version just to make the selection of the layer.

  

• How to cut the plan of $118.4 (hk) per month?

  How to cut the plan of $118.4 (hk) per month?

  Cancel your membership Adobe Creative Cloud

• Someone knows how to cut pakes in individual pages?

  Someone knows how to cut a pdf into individual pages?

  It is very easy, but it assumes that you have the full version of Adobe Acrobat and not the free Adobe Acrobat Reader.

• How can I change [frequency] on the audio spectrum?

  How can I change [frequency] on the audio spectrum? I really need an easy way to solve this problem

  After Effects has a very limited set of audio tools. Your only option to change the Equalization inside AE is to apply one of the equalizer and then before dialing the audio track that you use to the reader of the Audio spectrum. It's a little awkward, but it keeps all the controls inside the AE and keep them editable.

  Personally, if I want to isolate the frequencies I always use the hearing to create an audio layer duplicate that has been optimized for the effect that I need to generate audio.