Some questions about quality of displayed video, matching scaled object, and a funny issue occurs in my VI

Hi,
I am doing a pattern recognition project and come up with a VI (please find attached). There are something I am not sure and would like to ask:
1. The VI works, but in a funny way: most of the time I have to switch the "Create Template/Search for pattern" button twice in order to get the VI works fine (there were only a few times I just need to click the button once). What is the problem here and how to fix it?
2. I understand that IMAQ Match Pattern works with RGB images. So is there anyway I still can get RGB images pass through IMAQ Learn Pattern, IMAQ Match Pattern, whilst the 2 "Template" and resulting "Image" are still displayed in color mode.
3. Is there anyway I can still detect the object if scaling becomes an issue (as I need to move from far distance to approach the object)? To address this issue, do I need to use IMAQ Match Geometric Pattern, which I learn from somewhere in the forum that it took a lot more time to match my result comparing with IMAQ Match Pattern?
Thanks very much.
Solved!
Go to Solution.
Attachments:
pattern_recog.vi ‏128 KB

Sorry about silly question 2 (RGB <--> color). Actually, in my VI all the IMAQ Extract, IMAQ Pattern Match, etc.. can only work with Grayscale (U8) images. Whenever I switch the images to RGB (U32) there will be errors of Incompatible image type (error-1074396077). As I understand, IMAQ Extract and IMAQ Pattern Match should be able to work with RGB (U32) images. Am I right?
Attachments:
pattern_recog_test1.vi ‏128 KB

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逍遥浪子 wrote:
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Phase
Data
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----- ------------------ 15
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A Port is a collection of lines. Usually 8 lines to a port.
"What's the difference of Line nad Portin these function DIG_In_Line, DIG_Out_Prt, DIG_Line_Config, DIG_In_Prt, DIG_Out_Prt, DIG_Prt_Config"
These functions either perform an output or input, or configure your digital ports and lines. Please see the Traditional NI-DAQ Function Reference Help found under Start >> All Programs >> National Instruments >> NI-DAQ >> Traditional NI-DAQ Function Reference Help for more information on these functions.
"2.If I would like to apply gate to my counter application, is it possible that we give the gate signal via software? Or I need to connect signal from hardware? If hardware is needed, is it possible to apply another counter's output as my counter's gate input?"
You can apply a gate signal from software. For example you can use the 6602's Timebase to gate your counter during pulse measurement applications. You can also route a counter's output to the gate of another counter internally. Look up Select_Signal in the Function Reference Help for more details.
"3.Can we apply gate to this function ND_PULSE_TRAIN_GNR?"
I am not sure what you are asking here. ND_PULSE_TRAIN_GNR is a parameter used in the GPCTR_Set_Application function to set up a counter for pulse generation. Please see the page titled "application = ND_PULSE_TRAIN_GNR: GPCTR_Set_Application" in the Function Reference Help more more information about this parameter.
"4.Can we detect the counter's source is High or Low ?Is there any fuction to read out the source status?"
There is no function to read the state of the source pin. You will need to route the source pin to a PFI line and perform a digital read on that line.
I hope this answers your questions. Please feel free to reply if you have any further questions.

Some question about windows 7 and mini laptop

hi
i glad that i found this forum, i have the mini HP laptop 110 and i have some question
(i have intel atom 1.66 , 2G memory and windows 7 starter)
1. if i'll instal the windows 7 pro - is my performance will be smaller ?
2. what is the most light anti-virus that recommended for this mini laptop ?
3. what is the most light browser that recommended for this mini laptop ?
thank's in advance

Windows 7 is Windows 7 as far as the resources it consumes. So feel free to upgrade to 7 Pro and your performance should not take a hit. For light antivirus I recommend Avira. It is what I have on my own netbook. Lastly a good light browser is Opera.

Match Code Objects and ID's

Hi,
Can you explain what is Match code objects and ID
Regards,
Bharath Mohan B

Hi,
For many entry fields, but not all, SAP provides a search function called a Matchcode. Matchcodes allow you to select a value from a list or search for a value by categories of data if there are many possibilities.
Types of Matchcodes
Matchcodes fall into three basic categories:
1) Short list or hit list
The values are listed on one screen. For longer lists, you may need to scroll down to see all the values.
2) Restrict Value Range
Many entries are available for the field. A number of tabbed screens with different categories display so that you can enter your search criteria.
3) Calendar search
A calendar-type dialog box is displayed so that you can select day, month, and year. This is used in date fields such as invoice posting date.
Matchcodes were replaced with Search Helps starting with Release 4.0. Please use search helps to assign an input help to a field.
Existing matchcodes were automatically converted to search helps. A matchcode object is hereby converted to a collective search help with the same name. Each matchcode ID of the matchcode object is converted into an elementary search help with the same name and assigned to the collective search help created from the matchcode object.
A matchcode is a means of finding data records stored in the system. The matchcode is defined in the ABAP Dictionary in two steps:
You first define the relevant tables and fields for the search in a matchcode object. A matchcode object describes the set of all possible search paths for a search string.
You then create one or more matchcode IDs for a matchcode object. A matchcode ID describes a special search path for a search string. The matchcode ID defines the fields or field combinations to be used in the search.
http://www.sapdevelopment.co.uk/dictionary/shelp/shelphome.htmhttp://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee2b446011d189700000e8322d00/content.htm
This is also a good link
What are Search Helps, How to create and whats the Use ?
A search help can be created in ABAP Dictionary ( tcode se11 )
Create a new search help (say myHelp) , choose Elementary search help (simple one), select Definitions tab, enter the table name(say myTable) in "Text Table" text box.
Then enter the column to be used (say myField) for this help in search help parameter, choose Import/Export, give Lpos as 1, and activate. ( You can add more columns from the same table here).
In report, code as
parameter p1 like myTable-myField matchcode object myHelp.
when you execute this report, p1 will have a f4 help enabled. The help list will have all values from myTable for field myField.
Don't forget to reward if useful......

Some questions about quality of displayed video, matching scaled object, and a funny issue occurs in my VI

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