Measure the white area(s) in an image

I want to measure a white area in a binary image, how can i do this ?
I´m useing Imaq.

With the IMAQ-VIs "IMAQ ComplexParticle" or "IMAQ ComplexMeasure" (Image Processing -> Analysis) measurements in a binary image are almost no problem ...
Just mail again if you need more detailed help ...

Similar Messages

How do I shrink the size of the white area box to see more of the persona?

I would like to shrink the white area of the home page, so that most of the persona shows. All I use the white area for is the search feature, and the rest is blank. I asked a similar question before, but it was too technical to understand. Now, I can't even return to that answer.
I would like to have a more customizable web page, where I can move, re-size, or even delete parts of it. Mostly, I would like to see the persona, which is pretty. A programmable home page, which could use something like Print Shop or other greeting card setups, would be good.
I do not think I am the only one who does not understand the written instructions for this. I tried to follow them, but I messed up the design even more. Please look at Optimum Online, which has video tutorials, where someone actually shows you what to do and talks you through it. I set up my Optimum Online and Cablevision settings with that.

Personas decorate the Toolbar area ''(and maybe the Status bar at the bottom)'' of the Firefox browser window - the UserInterface; the "white area" below the Personas is the content area where the web page is displayed. Having a "more customizable web page" wouldn't do anything to display more of the Persona image. If you want a "customizable homepage" where you can move content around the page or add and remove items, find a web page like that and set that as your homepage in Firefox. You can any web page that you want as your "Homepage", you can even have multiple "homepages" in separate Tabs.<br />
http://support.mozilla.com/en-US/kb/How+to+set+the+home+page
If you want to see more of the Persona image vertically, you need to add some toolbars via the Toolbar Customize mode or by installing some Toolbar extensions that add a Toolbar to the Firefox UI. You need to add something to every new toolbar that you add, even a blank '''Space'''; if you don't place anything on a newly created Toolbar it will disappear when you exit the Customize mode. <br />
[https://support.mozilla.com/en-US/kb/How+to+customize+the+toolbar]
[http://www.google.com/search?num=30&hl=en&tbs=vid:1&q=personas+for+firefox&revid=1487667893&sa=X&ei=nVj9TKrYK5PungeLtOzICg&ved=0CGcQ1QIoAQ Google videos - personas for firefox] <br />
See if one those videos explains the process for you.

I have just downloaded Mac OS X 10.9 and Pages 5. When I open any pre-existing document in the new Pages the format is zoomed to 125%, the headers are out of position, the margins are changes, and inserted images are also relocated. What can I do?

I have just downloaded Mac OS X 10.9 and Pages 5. When I open any pre-existing document in the new Pages the format is zoomed to 125%, the headers are out of position, the margins are changes, and inserted images are also relocated. What can I do?

Have you tried resetting the SMC ? > Resetting the System Management Controller (SMC)

All the white areas of my display are a rapidly flashing pink grid! What did I knock loose?

I have a mid-2010 Macbook Pro 15-inch. I installed a Seagate 1TB SSHD into the optical drive slot a few months ago. It stopped working so I removed for return. I closed the thing up, turned it on, and suddenly (almost) all white spaces on my screen are now pink! A flashing pink grid, to be precise. For example, white icons on my desktop have a few flashing pink artifacts, and most of the white areas on pages in my browser (Chrome) are almost entirely pink.
I've opened the laptop many times before to install ram, HDDs, etc and I've never had any issue. FWIW, a few months ago the logic board was replaced by Apple due to the infamous graphics switching error.
Has anyone seen anything like this before? Could I have knocked something loose? Touched the wrong thing? Shocked the logic board?
Any help is greatly appreciated.

I have this exact problem - light gray is fine. Goes to pure white, and it raidly flashes a pink grid. Your post is the ONLY one I have seen just like it. And, I noticed no replies. What did you do to remedy? Or, did you find out it was a fatal problem? Any insight would be helpful before I go spend a lot on diagnostics...

When i email a pic through aperture the white areas of the pic shows white on the email version

when i email a pic through aperture the white areas of the pic show pink. this has never happened before. what is going on and how can i fix it?

Have you checked the color profile, that is used with the export preset used with email export?
Check in the Aperture preferences > Export > Email Photo Export Preset the preset setting. then set this to edit and look at the color preset. If it is something exotic, set it to Generic RGB Profile or Adobe RGB.
Regards
Léonie

Why the White Lines around imported Photoshop Images

Working in CS6, importing native Photoshop images into an Illustrator gradient. Certain imported Photoshop images, with transparent background, produce white lines bordering the images. The white lines stand out against the AI gradient. The whites lines are not visable on screen. They came out in the commercially printed product. The overall AI document, with PS images placed and linked, was save to a PDF. It was then printed from the PDF. The PDF, as viewed on screen, does not show the white lines either. Why and how do the white border lines (the box surrounding the image) appear?

First I would recommend making sure there are indeed »no pixels« there in Photoshop – applying the Layer Style Stroke can help locate stray, semitransparent pixels.
Other than that I am afraid your print service provider may not have provided optimal output.
What print process was employed anyway?
It looks like flattening effects, but those should simply not be visible in print.
They happen when exporting X1 or X3 pdfs, which disallow transparency, so in creating the pdf the psd files that have transparency are flattened with whatever background and often broken up into smaller parts.
That way a whole mess of fragmentary images can be created, as one can see when one opens such a pdf in Illustrator.
One can avoid that by creating X4 pdfs, which do allow transparency, but if those can be processed by the printer is another question.
But this issue might be more suitable to the Illustrator or pdf Fora.

Photo Stream white area over part of image

Hi,
I seldom use iCloud Shared Streams, but made one from Aperture 3.5. When I view it on my iPhone (iOS7.x) it has a white area over part of each image, for 'likes' and 'comments'.
How do I turn this off, so that I can see the photos instead of these text fields etc.?
Thanks for any pointers.

Hi,
I seldom use iCloud Shared Streams, but made one from Aperture 3.5. When I view it on my iPhone (iOS7.x) it has a white area over part of each image, for 'likes' and 'comments'.
How do I turn this off, so that I can see the photos instead of these text fields etc.?
Thanks for any pointers.

Trying to knock out the white areas, is there an "easy" way?

I created a graphic for a softball team that looks pretty traditional to how baseball/softball graphics generally look with the bold black lines and such. I have a lot of white areas which are suppose to be knocked out so the shirts color can show through. Currently, most of those white areas areas are white objects overtop of colored objects. I know how to knock them out of the colored objects using the pathfinder tool but this time, I just have soooo much! Its just twisting my mind trying to figure how to knock out of what layer and object and so on. I know to convert all the text and strokes to fills which helps a lot, but is there any quicker or easier way to have all those white objects knockout the colored ones? My brain is hurting with this one!

Generally speaking knockout (or KO) means no printing, or white. I think what you want is for the elements that are colored "White" or 0,0,0,0 or 255, 255, 255 (RGB) to change to [None]. You can select one object with the fill color White, then go to Select> Same Fill Color> and change them all to None. Another way to do this is to select all the White fills and change them to Overprint: Window> Attributes> Overprint Fill. You will need to go to View> Overprint Preview. Note some PDF viewers or rips might not accurately display or print overprinting White, so changing them to None is usually the better way. If you can post a screen shot of your work, we might be able to give you more suggestions.
You might also look into Compound Paths.

I get red pixels in the dark areas when converting duotone images to RGB

Hi, I have been using Duotone with my photos, but since the other day, everytime that I process a photo this way, when I convert then back to RGB mode, the dark (black) areas of the photo become a kind of bitmap of red pixels. I have tried with many different photos from RAW or JPEG files and I get the same result with all of them. This is an example of the issue. The original is on the left.
What may cause this? The photo looks good in duo tone. It is when converting to RGB when the corruption happens.
Thanks

Not following you: why are you converting from Duotone back to RGB?

In yahoo mail the settings are no to open images: when I ask...doesn't happen

Yahoo andother mail sites have a protection feature so images aren't loaded unless you click yes...when i do, nothing happens

{Ctrl + Shft + J} or Tools > Error Console = see if there is a message related to that problem
You can right-click a message and use '''Copy'''. Then Paste that message here and we'll see what it is all about.

My 27 inch imac has just started acting weird, the thumbnail images and folder on the desktop have disappeared although the titles are still visible. When I open a programme the programme windows are all black and the drop down menus just show random

When I tried to open the web browser the browser flashed black and white at start up, then all the applications when i open a new window are completely black, I am unable to view the drop down menus as the come out as random pixels. This happens to all new applications i have been able to open. The document window opens as plain white but if you click on it it opens a document even though you cant see any thumb nails. Some of the documents are open as normal images/files. Having been a mac user for 10 years i have never seen anything like this before, any ideas or suggestions

I have started running a virus check.
There are no viruses for OSX. Uninstall the software, repair permissions and restart your computer. Especially if it's Norton's. It's known to cause problems.
To rule out a hardware problem, run the hardware test: http://support.apple.com/kb/PH11342 OS X Mountain Lion: Use Apple Hardware Test and zapp the PRAM: http://support.apple.com/kb/PH11342 OS X Mountain Lion: Use Apple Hardware Test.
In the end you may need to lug your iMac down to your local AASP or an AS. Diagnostic testing is FREE!
i have had a mac in fact it is 17 years.
You got me beat by 3 yrs.

How to auto-crop empty area (white space) from a scanned image

I have a image scan operation thru' which the user can scan a A4-size paper, but the actual data on the scanned image is a small area.
Any way that we can programatically crop the white area from the scanned image?
Does JAI have any apis for doing this ?

If you look at the constructor for BufferedImage, you can create an image of a size you specify. After creating the image, you can draw on it by obtaining its Graphics via the createGraphics() method. Now, you can draw the source image on the target image using something like
imageGraphics.drawImage(sourceImage, 0, 0, targetImage.getWidth(), targetImage,getHeight, sourceUpperLeftX, sourceUpperLeftY, sourceUpperLeftX + targetImage.getWidth(), sourceUpperLeftY + targetImage.getHeight(), observer);
now, your BufferedImage has the cropped image on it. Dispose of the graphics (good habit to release resources it used) and you are done.

White lines appear around placed images in printing.

A native Illustrator document with placed Photoshop (both CS6) images produces whites lines around the placed images when printed. The Illustrator document does not show white lines on screen. Nor does the PDF (Acrobat X Pro) generated from the IA doc show white lines when viewed on screen. When the document goes to press, the printed product show the white lines:
See upper left image and lower right image-note: other images are not affected. Both both are native Photoshop images, placed on a gradient in IA. Perhaps the PDF settings: "Adobe PDF Preset" or "Standard" are not chosen correctly? Why the white lines?

You screenshot shows a modified Illustrator Default preset with Compatability to Acrobat 4. That setting always flattens transparency which is what I would suggest avoiding first.
Note the Warnings summary alerts that transparency will be flattened.
garlic541 wrote:
2.That same initial 'Save Adobe PDF' widow allows for three settings: Adobe PDF Preset (12 choices); Standard (6 choices), and Compatibility (5 choices). Note how the window signals a Warning (Warnings: Saving this file with Compatibilty set to Acrobat 4 (PDF 1.3) requires items with transparency to be flattened.) Could this be a warning that produces the stitch lines in the actual printing?
Yes
garlic541 wrote:
After researching....
Discussion seems to indicate seeing 'stiching lines' on screen; sometimes in the designing application; or in the generated PDF. My instances are visible only in printing-in two of the four images.
1. Transparency. Is this an automatic occurence in generating the PDF? Can I turn it on/off? (The 'Save Adobe PDF' window that allows changes to: General, Compression, Marks & Bleeds,Output,, Advanced.....)
Transparency is part of some design and all Effects. Note that you can change a color by using a tint or by setting it's transparency. Many times a tint will suffice. It looks the same and has the same values.
Your original screenshot apears to use images with clipping paths. (Full disclosure - I should know this, but don't...I expect) clipping paths require/invoke the transparent background to place the images within the colored area.
You cannot get around transparency but flattening converts vector objects to raster objects (when transparency touches/abuts/interacts with raster images).
You should be able to use the Illustrator Default, High Quality Print or PDFX-4 to maintain live transparency
2 very old (2004) Adobe white papers, not too legnthy which I can shed some light. Note - PDFX-4 superceeds all of these.
Transparency in Adobe Applications: A Print Production Guide
A Designer's Guide to Transparency for Print Output

Photoshop CS6 Help Required - Whites are slightly cream

This is the first time I have posted a question on this forum. If I am in the wrong place please accept my apoligies. Thanks.
I have a problem which I have spent days and days trying to solve but without success, I sincerely hope someone can help me.
I am using Photoshop CS6 (Version 13.0.6 x64) on a 27”iMac running OS X Mavericks (Version 10.9.1). My printer is an Epson 3800 (Driver Version 9.17). I am using Epson inks on Epson paper and my screen is correctly calibrated.
I have had the printer for a number of years and its prints are normally excellent. However the following problem has recently occurred and I am not sure what has caused it; but when I print the whites are not pure and are slightly cream.
If I print letting ‘Photoshop Manages Colours’ (which I have always done) and using an original Epson profile for Semigloss paper I get this problem. To be precise when I print a test Grey Scale my 5% and 0% (white end of spectrum) are both the same cream colour and the 100% and 95% (black end of spectrum are also the same shade of black). The profile numbers on the original image on screen reads for the white end 242 and 255 (5% and 0%) and for the black end 0 and 12 (100% and 95%). I have concluded that there is no problem with the image or my screen, as I have mentioned it is correctly calibrated and you can see the difference in all the tones from 100% to 0%.
When I print letting ‘Printer Manages Colours’ though I do not get this problem at all, although obviously the colour balance is not excellent compared to using the proper paper profiles. I have therefore concluded that there is no problem with my printer. It must then be either a profile issue or a software issue.
However I get exactly the same problem if I print on Epson Glossy paper using the appropriate original Epson profile and ‘Photoshop Manages Colours’. I have therefore concluded that it is not a profile issue and it must be a Photoshop issue, unless all the Epson profiles are corrupted which I think is most unlikely.
I appreciate that my logic may be completely wrong and that is why I am posting my plea for help.
Somewhere deep in Photoshop there must be a way to solve this problem. Can you offer any advice or assistance?
Message was edited by: RWJL

Either you aren't selecting the correct profile for the paper and printer, or something is going wrong in the printer driver and it applies color corrections when it should not.
Double check your choice of color profile - if that isn't it, then contact Epson and see if they have updates to fix their driver.

How do you make the whites of the eyes and teeth brighter?

Would someone be able to offer advice on making the "whites" of the eyes and teeth brighter or whiter? Thanks!

There are a few videos done on this by the Kelby group. Basically, Create a levels adjustment layer, and move the right slider to the left, which would make more of the image go towards white.
Then create a mask for that adjustment layer. Use the selection tools to create a selection of the white areas of the eyes. When you are done, click on icon at the bottom of the layers panel that looks like a circle inside of a square. That will convert your selection into a mask. Make sure the adjustment level is selected before clicking the mask icon, as that tells the layers panel which layer to apply the mask to.
If for some reason the mask is backwards, the eyes are darker than the rest of the person. You can click on the mask thumbnail that was just created on the adjustment layer to make it active, then invert the mask. Invert can be found in the select menu .

Measure the white area(s) in an image

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