grayscale images appear yellow

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• Why overlays take much longer on grayscale images single precision

  Hello

  I came across a rather curious problem. In a Visual inspection machine, we create 8-bit 16MPixel images. These are then calculated in single precision images. After processing the image display us certain types of images of result to the user. Here, the user can use the mouse on the image display and gets a reading of the current image of the sector where the mouse is currently positioned. If the image is RGB or U8, fine.

  However, if the display holds one of the 32-bit grayscale images things become quite slow, by a factor of 5 to 10 about. Now I can see that 32-bit is quite a bit more than 8 bits, so I guess an increase in lap by a maximum factor of 4 times.

  Since the images are large enough, an update takes about 90-100 ms with the 32-bit image, while the same action requires little more than 10 to 20 ms with U8 and same RGB. Because the movement of the mouse is caught by a structure of the event, all movements are processed and finally the tail to cause a blockage of the software that all these events are processed. This leads to ridiculously long 'freeze' time in the software, sometimes as long as 20 sec, as I saw through a log of the events has been implemented for this purpose.

  Attached is an example of code that shows the unusually long processing time for overlays on SGL-images. If there is any suggestion, I would be happy to read them. Thanks in advance.

  Falk

  After in-depth discussions with German support NOR we have understood that it is not primarily the recovery action that consumes time, but rather my screen image update after each action of the event. As my goal was to provide the user with the most recent image information available as close to the position of the mouse as possible there is no another way to do it without compromising the goal that I have explained.

  Several alternative ideas, we had (some don't work well) are briefly explained below:

  1. Use the property of the band of the art instead of creating an overlay
     • PRO: ultra fast response because no update of the display image is needed, easy to implement
     • Cons: Stationary, takes advanced band rest a while to appear, requires the user to stay in the same place on the screen for a while, the band faded unpredictable (in my test) and reappears only after leaving and returning to the display picture more keep the mouse pointer for a few seconds
  2. Use an extra (classic style) indicator string to display the desired text in the desired position
     • PRO: also very fast
     • CON: kind of hassle to the code, because it implies the correct calculation of the desired position of the channel indicator using the position of the window of the façade, the image appears indicator and the position of the mouse. Actually not hard I know, but nothing that see you with your mind on your dinner... You'll need a bunch of different reference types here to acquire the position necessary to window VI, indicator to display Image and mouse properties
  3. As 2 but without moving the indicator
     • PRO: fast and easy to implement
     • CON: not as easy to use since the indicator is stationary somewhere around the display of images and not at the mouse position.
  4. copy/typecast image SGL U8 image and move forward with overlays
     • PRO: the response is improved to the level that I used
     • CON: 'problem' with the update of the display image remains and therefore increases the response time the picture gets
  5. Use the property of the information string Image instead of creating an overlay
     • PRO: would be faster than 1., since no required update picture
     • k.o. - CON: property seems to be Read-Only, so no changes defined by the user of the text is possible

  I guess my choice will be 2.

  If anyone has other ideas on this subject, I will be always happy to hear about them.

• Why does it seem different in two docs ID even grayscale image?

  I have a grayscale image that I placed in two documents InDesign CS6. However, this image appears darker in Doc B than in A Doc (Doc has shown the image as it appears in Photoshop). Of course some adjustments in Doc B are darkening of the image, but I am struggling to find something relevant.

  Can someone suggest things for me to check?

  David

  They are similar in the two files with preview of active overprinting? If this isn't the case, it's probably a case of use of the different workspaces CMYK (profiles in grayscale are not recognized in the ID and the gray, the values are passed unchanged to the K channel in the document workspace). If they do it's probably transparency on the page in a file, and not the other.

  If this is transparency, you should expect both files to the same output, and the way that see you in the preview of overprinting.

• Why 3 images appear in the quick launch instead of one?

  I installed Firefox 14.0.1 and when I click on the first time on the quick launch icon and Firefox loads correctly, immediately 3 layers of the icon images appear on the quick launch. and when I 'RED X' out and go back in I get a half of the screen of my favorites in gray!

  You have several tabs open and 'Show previews tab in the Windows task bar' selected in Options > tabs?

• Why iphoto and facetime video images appear dark?

  Hi all!

  I have the Macbook Pro 15 inch, late 2013, OS X 10.9.4 retina. My iphoto images appear dark that they normally used to look like on my Macbook. Even when I do facetime, video seems to be dark. I first thought that there could be some problems of substantive lighthing. I tried to adjust the camera in every possible angle. If, by chance, the facetime video seems to be normal after adjustments, it will disappear in a few seconds and the video will get darker still.

  Anyone know how to fix this? Your help would be very appreciated.

  Thank you very much!

  General representation is dark as well?

  The brightness keys are easy to handle 'accidentally '.

  

• 46YL863: change TV channels - delay before the new image appears

  Hope someone can advise me please on an "issue" that's appeared recently with my 46YL863 TV.
  I say 'problem' rather than problem in case it's something to do with my settings, which is the cause.

  When I change channels I notice that there is a delay of several seconds of the current image to the new. I narrowed down it to this happens only when you switch from a HD channel to a one SD card, or from a SD card on a HD.

  In these circumstances the screen will first black, then blue and after a couple more seconds the new image of the string will appear.
  Switch between HD or SD channels and the new image appears almost immediately.

  This happened before the last two days, so either a fault has developed or I changed a setting in some way.

  I tried other plugs of HDMI input and the situation is the same.
  Any suggestions please?

  Thank you.

  > I tried other plugs of HDMI input and the situation is the same.
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• How to convert U32 matrix 8-bit grayscale image?

  Good day to all,

  I got a U32 512 * 512 data table of photomultiplier using the analog inputs of the DAQ card. My question is how to convert this matrix 32-bit to 8-bit monochrome image for display.

  I tried the method in this post to convert grayscale image https://decibel.ni.com/content/docs/DOC-4155 table but the result resembles an outline rather than the actual image. I guess that's because their contribution to flatten Pixmap is 8 bits, but mine is 32-bit. I have a gamma correction to the scale of my data? But how?

  I have attached the original image, which is a particle. I have also attached my labview code and the processed image.  Thank you!

  Then, you will likely make you own custom conversion then increasing the difference between the brightest and darkest. You could just do 4294963840 the zero and 4293967276 the max and scale up to 0-255

• When I turn on my laptop, a different user name and the image appears

  When I turn on my laptop, a different user name and photo will appear if I then select "change user", my own newspaper on the account and the image appears beside, which I can then access my PC. However, the account of the 'foreign' does not appear in the UAC - so I can't remove it from there. Any ideas please?

  Hello dhhuang,

  Sorry, seem to take your time on this.

  allI see in USERSare two folders;

  (1) Paul

  (2) public

  "" II I click on ' Paul ' and then capital letters to users in there I still don't see anything that resembles that.

  PS NTdata - what do Ido?

  Concerning

  Silverfox

• the option 'Show images' appeared at the top of some emails. My only option now is to show the e-mail on a web page. I would like to recover the original option.

  display images in windows mail

  Until recently, the option 'Show images' appeared at the top of some emails. My only option now is to show the e-mail on a web page. I would like to recover the original option.

  The problem is that IE9 has been installed by Windows Update and its not not watch 'bar info'.  See www.oehelp.com/OETips.aspx#15 for workarounds.

  Steve

• The images appear tense when played using the slide show in full screen

  The images appear tense when played using the slide show in full screen in Windows Vista Basic. That means that a picture of resolution 1920 x 1200 appears full screen covering although a 1920 x 1080 image seems letterbox in fullscreen. My screen resolution was put to the native resolution of 1920 x 1080. It is clear that this slide show program only keeping the proportions of the image. Earlier this problem wasn't there. I think that the slide show program addresses in such a way that my monitor could have 16:10 display of report resolution l / h. thanks for giving me a solution.

  This happens usually when the image resolution is high.

  Keep your screen resolution of 1024 x 768 and it should work fine.

• Why Photoshop doesn't load Raw files as a grayscale image?

  PS version CC2015.5 / Windows 7

  When loading an image directly from my hard disk, it loads a grayscale image. When Adobe Bridge opens first thumbnail images are displayed in a RGB color but sequentially begin displaying in grayscale. However, when the power of images in PS to help change in the images open as RGB color. Anyone know why this is happening and how to fix it. I must be the only one to go through this because I found nothing in any forum. Thank you... Peter

  The tab of HSL/levels of gray in Camera Raw, "Convert to grayscale" is checked on?

  

• Since the installation of CD images appear with a green cast. also print with a green cast. Earlier versions of Reader were ok. Concerned images do not have an inherent green cast. How can I fix. Could always revert to a previous version which had no pro

  Since the installation of CD images appear with a green cast. also print with a green cast. Earlier versions of Reader were ok. Concerned images do not have an inherent green cast. How can I fix. Could always revert to a previous version which had no problem?  G.W.

  Hi Q8F7B,

  Please let us know the version of the dowry of DC and operating system installed on your system drive.

  Is - this problem with a PDF in particular?

  Could you please also share the screen shot for the same thing?

  Kind regards

  Meenakshi

• Previous slide images appear on the next slide...

  In Captivate, when I add a new slide, the previous slide boxes and images appear on the new slide.

  They are not clickable and I am unable to remove them, but when I preview the blade in a browser, images etc. are not there. What is a graphics problem? I use a retina 13 '' MacBook Pro.

  Thank you.

  I also use a retina display, do not think it is related to that.  There are some possible causes. Maybe, but you have these timed elements "rest of project" don't check off the option "Always we top", which could explain why they do not appear when published if they are covered with normal objects on a slide. Less likely: objects on the slide used or main slide?

• I would get a single image appears 4 times on a pice of paper to print? How could I go about this?

  I would get a single image appears 4 times on a pice of paper to print? How could I go about this?

  Hi raymondp,

  You can duplicate the layer several times (right/control click on the layer and choose Duplicate Layer) and then move the layers around using move tool you want to that they will organize.

  Kind regards

  Claes

• I recently installed on a new PC for Windows 10.  A lot of PDF images appear as solid gray fields.

  I recently installed on a new PC for Windows 10.  A lot of PDF images appear as solid gray fields.

  Hi John,.

  Please come on in Edition > Preferences > Page Display

  Check the option display large Images

  Click OK

  Let me know the result.

  Thank you

  Abhishek