Thresholding an image in order to determine areas

Hey everyone,
I'm somewhat new to Labview and I've only recently gotten the Vision Development Module and the Vision Acquisition software. It's extremely new to me and I'm at a loss. I searched around and couldn't seem to find exactly what I'm looking for, or maybe I didn't understand it enough to know. I'm really just looking for something to get me started.
I am wanting to create a VI that thresholds an image that is inputed from a previous VI that I have already created in order to determine the area (number of pixels) the objects take up on the picture. The picture will have several metal objects on top of a colored background and will be later compared to another similar image.
What would be the best way to threshold this? Based on the colored background (most likely blue or green)? What I picture is for this to turn the image into black and white and then count the white pixels and group them by each object.
Attached are the image capturing VI which uses a webcam to take a picture and a test VI to try to figure out what thresholding is about.
Thanks in advance for the help.
Attachments:
ImageCaptureVI.vi ‏61 KB
TestThesholdingVI.vi ‏22 KB

Hello,
if you background is for blue for example, you could extract the opposite (complementary) color plane i.e. red to reinforce the contrast before thresholding:
BEFORE:
AFTER:
You can then manually or auto threshold. Manual threshoding needs to know the threshold values. The below part in your code is (probably) not correct:
Thresholding the image will convert the image to binary, no matter what value you specify, but the output is greatly dependant on this. The equation for Labview threshold function is (check the documentation to be sure):
IF f(u,v) >= Tlow AND f(u,v) <= Thigh, then f(u,v) = 1, otherwise f(u,v) = 0!
where f(u,v) is the value of the pixel at (u,v) location and Tlow is the lower threshold, Thigh is the upper threshold.
The range specifies this two threshold values. After you threshold the image, you can use morphology operations to reduce noisy data, fill holes etc... and use for example particle analysis (on binary image). If you use count and measure objects, you do not need to threshold the image before, since the function does this for you, again by specifying the threshold value(s).
Hope this helps.
Best regards,
K
https://decibel.ni.com/content/blogs/kl3m3n
"Kudos: Users may give one another Kudos on the forums for posts that they found particularly helpful or insightful."

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Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
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Tutorials & Resources
==================
"ashthekid" <[email protected]> wrote in
message
news:gds4km$105$[email protected]..
> Hi,
>
> I have about 80 images in a simple list layout on my web
page. I want to
> specify what order they are downloaded because they
randomly download at
> the
> moment. So sometimes the last few download first leaving
a big gap etc.
> They
> are in order for a reason so I would ideally like them
to be downloaded
> and
> shown in the order I have them listed. Sometimes the
first image is last
> to
> download which is really annoying.
>
> Is there any code to specify which order you want them
downloaded
> in?
>

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There's a function for that...
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u2022 V_TVTW - Define Distribution Channel
u2022 V_TVTA_KKB - Assign sales area to credit control area
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u2022 T001CM - FI - Assign Permitted Credit Control Area to company code
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Distribution Channel
Division
Distribution Channel
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o C - Credit limit check and delivery block (block delivery if hit credit limit)
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o D - Automatic credit control with open order values
 More control in transaction OVA8 - Automatic credit control
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 or open order values with other options
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OVAD - Define credit limit check by delivery order
u2022 whether the automatic credit check occurs at the time of delivery creation and/or goods issue
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u2022 Set whether to include/exclude item category for credit limit check
OVA6 - Define credit group. You can groups together different business transactions which should be dealt with in the same manner with regard to the credit check.
You enter the credit groups when you configure the sales document types for credit management and define the (D - automatic credit check).
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o 02 - credit group for delivery
o 03 - credit group for goods issue
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No of days open
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The preset % is whatever you want to set it as when configuring your automatic credit processing. You enter a deviation % and number of days,eg, you can set it so that an order can be changed by up to 10% within 30 days of original order entry date without it going back on credit block.
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VOKR - Display of work list for credit management (configure the display variant)
Releasing the Credit Block
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VKM3 - Sales Order
VKM5 - Delivery Order
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There are basically two types of customers:
1)Credit worthy
2)Normal customers
Coming to credit worthy customers these customers we can believe and we will give some credit ness for them.For such a type of customers we are going to set them some credit limit.Based on that we will give service to them till that limit.It the limit crosses we will get the messages while creating orders for them.
Their credit limit can be set in FD32 T.Code.
Automatic credit check will be maintained in OVA8
Follow these steps:
1. Go to IMG - enterprise structure - definition - financial accounting - define credit control area.
2. Assignment of company code to credit control area & sales area to credit control area.
3. Go to OVAK select ur sales document type and in the check credit column choose from A B or C. D is for automatic credit control for which you have to maintain the credit group and risk categories.
4. In FD32 you select your customer and click on STATUS icon and press enter. here u maintain the credit amount allowed. but this is done by the Finance people.
5. Now when you create the sales order and if the amount exceeds the credit limit then u will get the message as you maintained in the TC OVAK. Normally the system starts doing credit checks from the second sales.
order.
What are the different types of credit checks?
By Sunilmadho
Credit Check can be :
1) Simple Credit Check
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Automatic Credit Control can be at various levels :
1) Order
2) Delivery
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1) Static
2) Dynamic
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You can create more.
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All business have their own credit management needs, SAP allows you to specify your own automatic credit checks based on a variety of criteria. You can also specify at which critical points in the sales and distribution cycle the system carries out these checks.
SM30 - Table/View
u2022     V_TVTW - Define Distribution Channel
u2022     V_TVTA_KKB - Assign sales area to credit control area
u2022     V_T014 - FI - Define Credit Control Area
u2022     T001CM - FI - Assign Permitted Credit Control Area to company code
OVXG - Set up Sales Areas
e.g. Sales Organization
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                              Division
                  Distribution Channel
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FD32 - Customer Credit Management
OVAK - Define credit limit check by sales document type
u2022     Check Credit
o     A - Credit limit check and warning message
o     B - Credit limit check and error message (no sales order can be created)
o     C - Credit limit check and delivery block (block delivery if hit credit limit)
     Options B and C -> used for checking open order values (when you create/change the sales order)
o     D - Automatic credit control with open order values
     More control in transaction OVA8 - Automatic credit control
     You check for open orders and deliveries, or just open deliveries.
     or open order values with other options
u2022     Credit group
o     Allows you to combine different sales document types for the credit limit check
VKM1 - Blocked SD Documents - Finance have to released the delivery block
OVAD - Define credit limit check by delivery order
u2022     whether the automatic credit check occurs at the time of delivery creation and/or goods issue
OVA7 - Define credit limit check by item category
u2022     Set whether to include/exclude item category for credit limit check
OVA6 - Define credit group. You can groups together different business transactions which should be dealt with in the same manner with regard to the credit check.
You enter the credit groups when you configure the sales document types for credit management and define the (D - automatic credit check).
u2022     SAP default credit groups
o     01 - credit group for sales order
o     02 - credit group for delivery
o     03 - credit group for goods issue
OVA8 - Automatic credit control - Double click on the line items
You can have the followings credit limit check :-
u2022     Static
Depends on the customer total value of open orders, deliveries, billing documents and open items.
u2022     Open items
No of days open
Overdue open items checks is based on the ratio of open items that are overdue by a certain number of days.
Max open items %
The customer balance must not exceed a certain percentage.
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If you don't want to deliver to the customer at all when even only 1 invoice is overdue.
Tick the Check for Oldest Open Item and Set the field Days oldest item = 1.
Days oldest item
No of days allowed for overdue or payment terms.
Use of the credit check Oldest Open Item. If a user attempts to alter the order quantity of a released sales document
that was previously blocked, it would be reblocked again by the system. The system only reblocks the sales document if the new order quantity is above a certain % amount.
u2022     Released documents are still unchecked
The preset % is whatever you want to set it as when configuring your automatic credit processing. You enter a deviation % and number of days,eg, you can set it so that an order can be changed by up to 10% within 30 days of original order entry date without it going back on credit block.
u2022     Next Review Date
If a customer has a credit limit of 1000 USD, and you would like to restrict this credit limit only to be available in current month (say March). If the document day is in April then the credit limit is zero.
You can use the "NextReview date" and "Number of days" fields and combined it with the "Last int.review" field in customer credit master "Status" view (FD32).
VOKR - Display of work list for credit management (configure the display variant)
In credit mgmt how the Amount & limit can be can be configured at sales order,delivery & PGI Level.
Please give me the solution .
1)First create Credit control area
Path:IMG\ES\Definition\FA\Define Credit Control Area
2) Assign your credit control area to your company code
Path:IMG\ES\Assignment\FA\Assign Company code Credit Control Area
3) And enter the credit limit using above mentioned transaction code FD32.
4) And assign this credit control area in your customer master Sales Org Data (XD02)
5)if you have maintained the credit control area for your customer then goto T.Code FD32.
6)Enter your customer number and the credit control area.
7)Select the status tab.Press enter.
8)Maintain the credit limit in the field.Save.
9)Go to OVA8 T.Code and then click on open orde

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Hi,
May i ask 2 questions here.
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www.PrashanthVFX.com

Sorry, but you can't control the order in which page items load. This
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Hi Nancy, i'm a bit shocked to hear this. I was thinking website designing has evolved over many years and so there should definitely be a way to load images in order. I am a Computer Graphcis artist and so not much good in scripting. But, i think we can device a simple script by which we can mention the images order separated by comma's "," and so the browser will not load the 2nd image until it has completely finishined loading the 1st image. Correct me if am wrong.
I don't understand your question. Do you have a link to a web page that actually does what you're asking?
Sure I have. If you can click this link http://www.prashanthvfx.com/art.html , you can find under "Concepts & Imaginary", i had displayed 14 thumbnails for the above link. All the images are linked to one webpage were 14 bigger images are stacked. Now, if you click on any thumbnail, it will open the link keeping the vertical scroll bar at the top. So, you need to scroll all the way down to see the corresponding bigger image. My question here is, can we device a way, by which if first if we click each image, it will point to the corresponding bigger image on the http://www.prashanthvfx.com/Concepts&Imaginery.html.
Meaning, if i click on the last thumbnail "Keep city Clean" , it should open http://www.prashanthvfx.com/Concepts&Imaginery.html and directly point to the last image on the linked webpage, by pushing the vertical scroll bar all the way down, were the corresponding bigger image is displayed.
Hope i am making myself clear with the above links and examples. I would be glad to give you further explantion if needed.
I really appreciate your time.
Thanks
-Prashanth
www.PrashanthVFX.com

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alahari

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An example page of the site in question is:
http://www.southbankcentre.co.uk/about-us
The white background image (which is super large for reasons not to discuss now) will show fine when, say, up to 10 tabs are open. However, if you have loads and loads of tabs open, this image doesn't display/render (even though firebug says it has).
Some info about the image:
http://www.southbankcentre.co.uk/sites/all/themes/southbank-centre/images/template-3-col.png
79.6kb
940px by 23000px (super huge I know)
The problem is when it doesnt load, the copy is hard to read (as you can imagine).
This doesnt seem unique to my computer. It happens to other peoples firefox browsers (and they have slightly different versions and different plug-ins).

I'm not having any problems on that page with over 80 tabs open and the number of tabs shouldn't matter.
Did you check if you can reproduce it with a clean new profile without extensions?
Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]

Sales Orders Report which are invoiced

Hi gurus,
I want to take a report of Sales orders which are invoiced. Its order related invoice.
Eg.
from 01.04.2008 to 30.04.2008 I created 120 Sales orders, out of 120 i created invoices for 80 Sales orders. Now i want the report of the Sales orders(80) which are invoiced. How can we get this report.
In VA05 Report we can find out open & all sales orders, but we cant find this report. other than this any report is there, please let me know.
Cheers,
Sumith

Hi,
1. You can use VA05, to find out the list of orders out of those 120 orders which are not yet invoiced. Thus you will know the invoiced orders.
2. In this way, go to table VBAK to get the list of 120 orders you have created.
Give these 120 orders in VBUK table as preceeding document adn find the follow on documents which are of document category M. This will give the list of orders adn the invoice numbers created for them.
Now the rest of the orders are open orders.
Hope thsi helps you
Pls reward if it helps you

Sales order materials (BOM) are not coming to the delivery

Hello,
created the sales order with BOM materials, in the sales it's showing the all materls (BOM materials) as per our configuration. but when i try to create the delivery it's not showing the all materials in delivery.
maintained item level bom
for material -
A, i have maintined the components A1, A2 & A3 (items), when i created order with material A, its showing the A, A1,A2 & A3 materialsin the order, but when i try to create the delivery its showing only A1 & A2 materials. it not showing in the delivery A3 material.
any locks or blocks for POI?
any one help regarding this issue
Regards|ks

Hello,
i have checked the delviery group in the sales order all items are under the same delviery group. but why the delviery not showing all item in one delviery?
Could you please reply
Regards|KS

Cancel Sales Order lines that are picked

Hi
1. I'm trying to cancel sales order lines through process order api that are picked and delivery status is Staged/Pick Confirmed. The error is
You are not allowed to cancel Order Line because:
Line has been pick confirmed/staged.
I'm unable to perform by below means
1.There is a processing constraint on the field SCHEDULE_ARRIVAL_DATE.
Delete the processing constraint and retry the cancel line process - Processing constraint form the fields are protected against update
2.Navigate to the shipping transaction form and query the order. Select the line and enter 0 at shipped quantity.Save the record.Ship confirm the line, this will cause the line to be backordered.Query the order line in the order entry form and cancel this. - Shipping transactions form the fields are protected against update
2. Is there a way to cancel Internal Sales Order(ISO) lines of one OU and the corresponding internal requisition is another OU
Thanks
kumar

If you are in R12, there are some enhancements from Oracle that allows updating/cancelling certain Internal requistion fields and Internal orders automatically. You may need to disable few processing constraints too.
As of Now Oracle support change to following attribute at OM side
1 Order Quantity
2 Request Date
3 Schedule date
4 Arrival date
Similarly if we make changes in following fields in Approved IR
1 Quantity
2 Need by Date
These changes will got reflected in ISO
Plus cancel the IR line or ISO line, the other one gets cancelled automaically.
To cancel the picked line, first undo the pick confirmation process by back ordering. or unassign the delivery details from the delivery (if created already) and cancel the delivery.In either case, you need to manually trasnfer the qty from staging area to original locations. Oracle doesn't automatically move the qty back, (undo move order transaction).
Ganesan.

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