Difference between intensity and gray scale value

Hi I am a new learner of NI vision, please bare with me.
1. I am quite confused by the terms of light intensity and gray scale value of pixels. Can anyone explain the difference to me? Or are they totally same thing? 
2. I am currently processing a Grayscale (I16) image file. The bit depth of the image is 12 Bits. But I saw someone used IMAQ Histograph with the Number of Classes set as 8192(13 Bit), don't know why.
Thanks, Jane
Solved!
Go to Solution.

Hello Jane,
1. Correct, gray scale and intensity are the same thing.
2. The number of calsses one selects is a judgement call.  By increasing or decreasing the number of classes the more or less granular the histogram becomes.  Without some context I cannot speculate as to why someone would use 8192 classes.
David A
National Instruments
FlexRIO Product Support Engineer

Similar Messages

  • Difference Between FI and Profit Centre Value In Stock GL

    Hi
    After running the report 1KEH (Tranfer Matrial Stocks) the difference of 1000 is coming out between profit centre and FI in one of the semi finished stock Gls. The MM report MB5L is also showing that difference between stock and FI value. (Materail value is less than FI value). Can anybody please guide me how to dig out this problem where the difference is arising.
    Kind Regards

    Hi,
    in most cases its a manual FI-posting that causes the difference, compare MB5L logistics details (per material) with FI-postings (per material, maybe its needed to create a query/quick view to get this info). Do you have the difference again for another MB5L line? This can happen if the Balnce sheet account in FI-account determination is changed.
    Best regards, Christian

  • Difference between zero and blank values

    Is there a way for the system to determine the difference between zero and blank values. One can have a zero allowed for the 0 value to actualy be there in the KF but is there a way that a macro can be written by which we can use the differentiation between the zero ( a value) and blank (no value) in the KF
    I have tried to look for an explanation on the service.sap.com and sdn but was not able to find anything.
    Thanks in advance

    Thanks for your reply. You mentioned something about the "fixing" setting that could make the "0" displayed in the planning book. Could you elaborate?
    Also, in the post from user "APO APO" on 5/8, the author seemed to indicate they could see the "0" in the planning book, as quoted below:
    "I have already made the zero allowed arrangement for that in the planning area and can see the 0 values in the planning book but I am not being able to make the macro get the results."
    I just want to find out if there is any way the user can visually distinguish b/w the "0" and blank values. If not, it'll be very confusing to the users. I understand the macros can distinguish b/w them.
    Thanks in advance.

  • Difference between "false" and "FALSE" value

    Hello All,
    Many times i have seen that intellisence shows options "true" , "TRUE" , "false" , "FALSE" together.
    Can anyone tell me the difference between lowercase and uppercase value?
    For Example : ActivateOnDefault Property of SPFeature shows these options.
    Thanks in advance.

    there are also True and False options. Inside xml with Sharepoint artifacts (including mentioned feature declaration) all versions should work.
    Blog - http://sadomovalex.blogspot.com
    Dynamic CAML queries via C# - http://camlex.codeplex.com

  • Difference between binding and value

    Hi
    I am new to JSF
    Can you tell me what is the difference between binding and value attribute of a
    JSF component ?
    Many thanks.

    Hi,
    the binding is the component association to a managed bean (or backing bean). This allows you to manipulate the component in Java code stored in a managed bean.
    The value is what the actual component value is.
    Frank

  • Report - quantity and value difference between delivery and invoice?

    Hello experts,
    My client use u201EProof of deliveryu201D t-code: VLPOD. There is always quantity and value difference between delivery and invoice.
    Do you know any report which will show this differences between delivery and invoice?
    Best regards,
    Maciej

    Hi,
    Note 867678 - Proof of delivery (POD), delivery and billing document will help you to understand POD flow.
    You have the tcode VLPODF/VLPODL/VLPODA, but perhaps they will not help you. So, as the before note suggests you, you can use the tables VBFA, LIKP, LIPS, VBRK, VBRP, TVPOD and TVPODG to do your own report.
    I hope this helps you
    Regard,
    Eduardo

  • What's the exact difference between "Query Def. Filter Value Selection" and

    Hi Gurus,
    what's the exact difference between "Query Def. Filter Value Selection" and "Query Execution Filter Val. Selectn" in info-object's "Business explorer" tab?
    I found out that if my info-object A has a input-ready variable in a query,after the query running,in  the selection screen,my info-object A's F4 value is follow the setting of "Query Execution Filter Val. Selectn",as the setting of "Query Def. Filter Value Selection" I tried every diff setting, it won't effect my query anyway.
    so:
    1.what's the exact difference between "Query Def. Filter Value Selection" and "Query Execution Filter Val. Selectn" in info-object's "Business explorer" tab?
    2.how they effect query's presentation?
    I searched forum,didn't find the answer what I want.
    Thanks everyone.

    Hi Denny,
    I will try to explain it again.
    Query Def. Filter Value Selection : Let say the value is set to "Only Values in Infoprovider"
    Lets take an example infoobject - 0MATERIAL (Material)
    Total material records in material Master = 1000 (master Data table /BI0/PMATERIAL)
    You create a query on top of an Infoprovider using Material.
    Total unique materials in Infoprovider= 500.
    Now when you are in design mode in Query Designer, and you try to restrict Material by few materials (for e.g. 1, 2, and 3), for this you right click on material and select Restrict, the pop-up opens with list of materials, this list is all those 500 materials which are in the infoprovider, because the setting is  "Only Values in Infoprovider". Which means then when you are trying to restrict a characterstic in query definition the list of values displayed for restricition is derived from Infoprovider.
    Query Execution Filter Value Selection  - I think you already know what it is , its the read mode for F4 help selection.
    I hope this helps.
    Thanks
    CK

  • What is the difference between tkprof and explainplan

    Hi,
    what is the difference between tkprof and explainplan.

    Execution Plans and the EXPLAIN PLAN Statement
    Before the database server can execute a SQL statement, Oracle must first parse the statement and develop an execution plan. The execution plan is a task list of sorts that decomposes a potentially complex SQL operation into a series of basic data access operations. For example, a query against the dept table might have an execution plan that consists of an index lookup on the deptno index, followed by a table access by ROWID.
    The EXPLAIN PLAN statement allows you to submit a SQL statement to Oracle and have the database prepare the execution plan for the statement without actually executing it. The execution plan is made available to you in the form of rows inserted into a special table called a plan table. You may query the rows in the plan table using ordinary SELECT statements in order to see the steps of the execution plan for the statement you explained. You may keep multiple execution plans in the plan table by assigning each a unique statement_id. Or you may choose to delete the rows from the plan table after you are finished looking at the execution plan. You can also roll back an EXPLAIN PLAN statement in order to remove the execution plan from the plan table.
    The EXPLAIN PLAN statement runs very quickly, even if the statement being explained is a query that might run for hours. This is because the statement is simply parsed and its execution plan saved into the plan table. The actual statement is never executed by EXPLAIN PLAN. Along these same lines, if the statement being explained includes bind variables, the variables never need to actually be bound. The values that would be bound are not relevant since the statement is not actually executed.
    You don’t need any special system privileges in order to use the EXPLAIN PLAN statement. However, you do need to have INSERT privileges on the plan table, and you must have sufficient privileges to execute the statement you are trying to explain. The one difference is that in order to explain a statement that involves views, you must have privileges on all of the tables that make up the view. If you don’t, you’ll get an “ORA-01039: insufficient privileges on underlying objects of the view” error.
    The columns that make up the plan table are as follows:
    Name Null? Type
    STATEMENT_ID VARCHAR2(30)
    TIMESTAMP DATE
    REMARKS VARCHAR2(80)
    OPERATION VARCHAR2(30)
    OPTIONS VARCHAR2(30)
    OBJECT_NODE VARCHAR2(128)
    OBJECT_OWNER VARCHAR2(30)
    OBJECT_NAME VARCHAR2(30)
    OBJECT_INSTANCE NUMBER(38)
    OBJECT_TYPE VARCHAR2(30)
    OPTIMIZER VARCHAR2(255)
    SEARCH_COLUMNS NUMBER
    ID NUMBER(38)
    PARENT_ID NUMBER(38)
    POSITION NUMBER(38)
    COST NUMBER(38)
    CARDINALITY NUMBER(38)
    BYTES NUMBER(38)
    OTHER_TAG VARCHAR2(255)
    PARTITION_START VARCHAR2(255)
    PARTITION_STOP VARCHAR2(255)
    PARTITION_ID NUMBER(38)
    OTHER LONG
    DISTRIBUTION VARCHAR2(30)
    There are other ways to view execution plans besides issuing the EXPLAIN PLAN statement and querying the plan table. SQL*Plus can automatically display an execution plan after each statement is executed. Also, there are many GUI tools available that allow you to click on a SQL statement in the shared pool and view its execution plan. In addition, TKPROF can optionally include execution plans in its reports as well.
    Trace Files and the TKPROF Utility
    TKPROF is a utility that you invoke at the operating system level in order to analyze SQL trace files and generate reports that present the trace information in a readable form. Although the details of how you invoke TKPROF vary from one platform to the next, Oracle Corporation provides TKPROF with all releases of the database and the basic functionality is the same on all platforms.
    The term trace file may be a bit confusing. More recent releases of the database offer a product called Oracle Trace Collection Services. Also, Net8 is capable of generating trace files. SQL trace files are entirely different. SQL trace is a facility that you enable or disable for individual database sessions or for the entire instance as a whole. When SQL trace is enabled for a database session, the Oracle server process handling that session writes detailed information about all database calls and operations to a trace file. Special database events may be set in order to cause Oracle to write even more specific information—such as the values of bind variables—into the trace file.
    SQL trace files are text files that, strictly speaking, are human readable. However, they are extremely verbose, repetitive, and cryptic. For example, if an application opens a cursor and fetches 1000 rows from the cursor one row at a time, there will be over 1000 separate entries in the trace file.
    TKPROF is a program that you invoke at the operating system command prompt in order to reformat the trace file into a format that is much easier to comprehend. Each SQL statement is displayed in the report, along with counts of how many times it was parsed, executed, and fetched. CPU time, elapsed time, logical reads, physical reads, and rows processed are also reported, along with information about recursion level and misses in the library cache. TKPROF can also optionally include the execution plan for each SQL statement in the report, along with counts of how many rows were processed at each step of the execution plan.
    The SQL statements can be listed in a TKPROF report in the order of how much resource they used, if desired. Also, recursive SQL statements issued by the SYS user to manage the data dictionary can be included or excluded, and TKPROF can write SQL statements from the traced session into a spool file.
    How EXPLAIN PLAN and TKPROF Aid in the Application Tuning Process
    EXPLAIN PLAN and TKPROF are valuable tools in the tuning process. Tuning at the application level typically yields the most dramatic results, and these two tools can help with the tuning in many different ways.
    EXPLAIN PLAN and TKPROF allow you to proactively tune an application while it is in development. It is relatively easy to enable SQL trace, run an application in a test environment, run TKPROF on the trace file, and review the output to determine if application or schema changes are called for. EXPLAIN PLAN is handy for evaluating individual SQL statements.
    By reviewing execution plans, you can also validate the scalability of an application. If the database operations are dependent upon full table scans of tables that could grow quite large, then there may be scalability problems ahead. On the other hand, if large tables are accessed via selective indexes, then scalability may not be a problem.
    EXPLAIN PLAN and TKPROF may also be used in an existing production environment in order to zero in on resource intensive operations and get insights into how the code may be optimized. TKPROF can further be used to quantify the resources required by specific database operations or application functions.
    EXPLAIN PLAN is also handy for estimating resource requirements in advance. Suppose you have an ad hoc reporting request against a very large database. Running queries through EXPLAIN PLAN will let you determine in advance if the queries are feasible or if they will be resource intensive and will take unacceptably long to run.

  • Difference between Null and null?

    What is the difference between null and NULL?
    When is each used?
    Thanks,

    veryConfused wrote:
    There is a null in java, but no NULL. null means no value. However, when assigning value, the following is different:Although the empty String has no special role. Null means, the referential type is not assigned (doesn't refer) to a specific object. The empty String is just another object though, so seeing it or pointing it out as something special when it actually isn't at all (no more special than new Integer(0) or new Object[0]) just adds to the confusion.

  • Difference between char and varchar, also the difference between varchar2

    Hi,
    Can anyone explain me the difference between char and varchar, and also the difference between varchar and varchar2...

    Varchar2 is variable width character data type, so if you define column with width 20 and insert only one character to tis column only, one character will be stored in database. Char is not variable width so when you define column with width 20 and insert one character to this column it will be right padded with 19 spaces to desired length, so you will store 20 characters in the dattabase (follow the example 1). Varchar data type from Oracle 9i is automaticlly promoted to varchar2 (follow example 2)
    Example 1:
    SQL> create table tchar(text1 char(10), text2 varchar2(10))
    2 /
    Table created.
    SQL> insert into tchar values('krystian','krystian')
    2 /
    1 row created.
    SQL> select text1, length(text1), text2, length(text2)
    2 from tchar
    3 /
    TEXT1 LENGTH(TEXT1) TEXT2 LENGTH(TEXT2)
    krystian 10 krystian 8
    Example 2:
    create table tvarchar(text varchar(10))
    SQL> select table_name,column_name,data_type
    2 from user_tab_columns
    3 where table_name = 'TVARCHAR'
    4 /
    TABLE_NAME COLUMN_NAME DATA_TYPE
    TVARCHAR TEXT VARCHAR2
    Best Regards
    Krystian Zieja / mob

  • Difference between ok_code and sy-ucomm

    Hi,
    Can any one tell me the difference between ok_code and sy-ucomm

    Hi,
    Actually OK_CODE and SY-Ucomm are the same. But experts suggest use of OK code for following reason:
    In each PAI event that a user triggers by choosing either a pushbutton on the screen or an element in a GUI status, the corresponding function code is placed into the system field SYST-UCOMM or SY-UCOMM and placed in the OK_CODE field (as long as the function code is not empty). Empty function codes are placed in neither the SY-UCOMM field nor the OK_CODE field.
    In your ABAP programs, you should work with the OK_CODE field instead of SY-UCOMM. There are two reasons for this: Firstly, the ABAP program has full control over fields declared within it, and secondly, you should never change the value of an ABAP system field. However, you should also always initialize the OK_CODE field in an ABAP program for the following reason:
    In the same way that the OK_CODE field in the ABAP program and the system field SY-UCOMM receive the contents of the corresponding screen fields in the PAI event, their contents are also assigned to the OK_CODE screen field and system field SYST-UCOMM in the PBO event. Therefore, you must clear the OK_CODE field in the ABAP program to ensure that the function code of a screen is not already filled in the PBO event with an unwanted value. This is particularly important when the next PAI event can be triggered with an empty function code (for example, using ENTER). Empty function codes do not affect SY-UCOMM or the OK_CODE field, and consequently, the old field contents are transported.

  • What is the difference between #variable_name and :variable_name?

    Hi!
    What is the difference between #variable_name and :variable_name?
    I have found that if we use alphanumeric variable then :variable_name return value in quotes but #variable_name without quotes.
    Why it does not work in the same way for variable default values when variable is used in filter? (It works in mapping)
    I use variable in filter like T.OUT_DATE>convert(datetime,:LAST_UPDATE_DATE,121)
    When I use my variable in package and do refresh it works fine. But when I try to execute the same interface with variable default value I get error. Seems that variable name has been not changed to the value. It does not work with default value in quotes neither without quotes.
    Any ideas how to solve that?
    Thank you in advance!
    Edited by: user13278245 on Sep 15, 2010 4:34 AM

    Question is how to make it work with default value, when I execute interface standalone, not in package? And why it works in mapping but not in filter?
    + I have found that it works if source is Oracle. It doesn't work only for MS SQL source.
    Edited by: user13278245 on Sep 15, 2010 6:43 AM

  • What is the difference between SWF and F4V in the context of Streaming or progressive Download?

    Hello everybody,
    I am absolutely a beginner in working with Captivate and furthermore my technological know how is not that good.
    So, I have problems to understand if the export formats SWF and F4V are both capable to be published in the Internet as streaming video and as progressive Download? Well so, I do not really understand the difference between streaming and progessive download either?
    Furthermore I was asking myself if this issue depends on how I imported flash videos (there are these two options) in my Captivate project during the production phase?
    I would be very thankful for some helping information!
    Greetings,
    Mareike the beginner

    Welcome to our community
    I'm not certain I fully understand the differences myself, but will toss out what I believe to be true about the formats. Hopefully, if I'm incorrect in my bellief, someone with more definitive knowledge will chime in.
    It was explained to me a couple of years back and is my understanding that "streaming" only applies to a video based format such as F4V, FLV and it doesn't apply to SWF. With SWF, you may specify a preload value. So when the SWF transmits from the web server to the PC, a certain percentage has to be received before play begins. But that's not streaming. It's preloading.
    For streaming to occur, the web server establishes a communication channel between the server and the destination PC. This channel is monitored to see what speed is in use. Only enough information is then transmitted to be comfortable at that speed. If the speed improves during the connection, the server serves data at a faster rate. If the connection degrades, the information transmitted is also scaled back so as to accommodate the lower speed.
    With SWF, after it has all been downloaded, a savvy user is able to poke around in their temporary internet files and save the SWF for play later. With streaming, this isn't possible because as the stream is viewed, it evaporates from memory.
    Seriously hoping others will chime in here to confirm or deny this.
    Cheers... Rick
    Helpful and Handy Links
    Begin learning Captivate 5 moments from now! $29.95
    Captivate Wish Form/Bug Reporting Form
    Adobe Certified Captivate Training
    SorcererStone Blog
    Captivate eBooks

  • Difference between BAPI and RFC?

    Difference between BAPI and RFC?
    also where to use BAPI and where to use RFC?

    Hi,
    BAPI are RFC enabled function modules. the difference between RFc and BAPI are business objects. You create business objects and those are then registered in your BOR (Business Object Repository) which can be accessed outside the SAP system by using some other applications (Non-SAP) such as VB or JAVA. in this case u only specify the business object and its method from external system in BAPI there is no direct system call. while RFC are direct system call Some BAPIs provide basic functions and can be used for most SAP business object types. These BAPIs should be implemented the same for all business object types. Standardized BAPIs are easier to use and prevent users having to deal with a number of different BAPIs. Whenever possible, a standardized BAPI must be used in preference to an individual BAPI.
    The following standardized BAPIs are provided:
    Reading instances of SAP business objects
    GetList ( )  With the BAPI GetList you can select a range of object key values, for example, company codes and material numbers.
    The BAPI GetList() is a class method.
    GetDetail()  With the BAPI GetDetail() the details of an instance of a business object type are retrieved and returned to the calling program. The instance is identified via its key. The BAPI GetDetail() is an instance method.  BAPIs that can create, change or delete instances of a business object type
    The following BAPIs of the same object type have to be programmed so that they can be called several times within one transaction. For example, if, after sales order 1 has been created, a second sales order 2 is created in the same transaction, the second BAPI call must not affect the consistency of the sales order 2. After completing the transaction with a COMMIT WORK, both the orders are saved consistently in the database.
    Create( ) and CreateFromData! ( ) 
    The BAPIs Create() and CreateFromData() create an instance of an SAP business object type, for example, a purchase order. These BAPIs are class methods. 
    Change( ) 
    The BAPI Change() changes an existing instance of an SAP business object type, for example, a purchase order. The BAPI Change () is an instance method. 
    Delete( ) and Undelete( )  The BAPI Delete() deletes an instance of an SAP business object type from the database or sets a deletion flag.
    The BAPI Undelete() removes a deletion flag. These BAPIs are instance methods.
    Cancel ( )  Unlike the BAPI Delete(), the BAPI Cancel() cancels an instance of a business object type. The instance to be cancelled remains in the database and an additional instance is created and this is the one that is actually canceled. The Cancel() BAPI is an instance method. 
    Add<subobject> ( ) and Remove<subobject> ( )  The BAPI Add<subobject> adds a subobject to an existing object inst! ance and the BAPI and Remove<subobject> removes a subobject from an object instance. These BAPIs are instance methods.
    Regards,
    Prakash

  • Difference between sendRedirect and RequestDispatcher?

    Difference between sendRedirect and RequestDispatcher?

    I have a situation of needing to redirect a request to a URL that is outside of the container. The scenario is the following, we have a simple logging in servlet that takes some POST parameters (username, password, and other values.) Depending on the username and password, the logon request along with all its POST parameters need to be redirected integrally to another machine. How do i do a redirect with all my parameters intact? sendRedirect does not seem to have any (visible to me) mechanism to do this. We cannot send them on the URL as this will reveal things too easily to our users and we don't want them to bookmark the resulting page.
    Thanks for any help,
    t

Maybe you are looking for