Auto generate mask from motion?

I have a clip of a person walking around a scene and a clip without them walking around(the background). I want to apply a different color to the walking person so I will obviously need a mask around them on the top layer. How can I auto generate a mask of the moving person instead of frame by frame mask readjustment?
Is there a track motion and auto move mask tool?

12padams wrote:
Yikes! That sounds complicated...
Welcome to the world of motion graphics and compositing.
Basically I have a blank room video layer at the bottom. Above that I have transparent footage of the same room with a person walking across. I want that footage on the top layer to be a moving mask that follows only the person. Then I want to apply an effect to that moving person mask and make then blue (they are already transparent). Is this possible?
Sorry, your terminology is a little vague, so it's not clear what you have or what you are trying to achieve. What do you mean by "Transparent footage"?
I'm assuming you have a back plate of your room environment, plus a second layer of footage which contains a person walking around in the room - framed exactl the same.
As Mylenium said, use the Difference Matte effect to generate a matte of the walking person. You may be able to directly use the matte for your purposes and just key the character out of the background. If you truly need a mask, you will need to use the Auto Trace function to generate the mask from your matte.

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Hi,
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<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format"
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Hi,
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- Morten
http://ora-00001.blogspot.com

HOW TO GET AUTO GENERATED PRIMARY ID KEY BACK FROM AN INSERT STATEMENT IN .

Just recently I ran into a problem with what seems to be a deficiency in the Oracle Database. When trying to return an auto-generated key as is done in Microsoft's SQL database, it seems Oracle for whatever reason didn't add this capability, the key couldn't be passed back to the .Net call. After tinkering with the .Net software and talking with the Oracle techs, a decent work around to the problem (presented here) comes fairly close. Two things have to be done first before this will work. A sequence has to be created on the Oracle DB. Also a trigger has to be created against the table the keys are going to be returned from.
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' ======================================================================
' Created by SEF and Oracle SR: 5607364.993 This is a complete Redo
' of the initial concept. SEF...
' Sample of sequence and trigger at bottom.
' Uses the ODP.NET data provider.
' update_datasets_return: Goes thru each table in the dataset and
' updates, deletes, or inserts as needed.
' If inserting, a 'sequence counter' and a 'trigger'
' using the 'before insert' must be present. The sequence
' counter is set to auto increment by 1 starting at 1.
' The trigger is specific to the table.
' Create the trigger and sequence in the database or run the samples
' below in PL/SQL. Be sure the logon with a user that has enough rights.
' Routine assumes the first column is going to hold the sequence
' number. Actually any column could be used. Just change the
' dt.Columns(0).ColumnName to whatever you want or leave as default.
' The da_RowUpdated sub is where the 'sequence number' gets returned
' on each row that is inserted into a table. Routine is ignored on
' deletes and updates. SEF...
' =======================================================================
Imports System
Imports System.Data
Imports Oracle.DataAccess.Client
Imports Oracle.DataAccess.Types
Public Class OracleUpdate
Private Shared m_conn As OracleConnection
Private Shared da As New OracleDataAdapter
Private Shared dt As DataTable
Private Shared conn As New OracleConnection
Private Shared dr As DataRow
Private Shared astep As Long
Private Shared rwIndex As Integer = 0
Private Shared tblIndex As Integer = 0
Public Shared Function update_datasets_return(ByVal constr As String, ByVal ds As DataSet) As DataSet ''ByRef ds As DataSet)
Dim selectstmt As String
m_conn = New OracleConnection(constr)
Try
m_conn.Open()
Catch ex As Exception
Throw New ArgumentException(" Error: connection lost." & ex.Message)
End Try
For Each dt In ds.Tables
''Uncomment the code only if auto numbering
''is NOT turned on for the table being updated. SEF...
''rwIndex = 0
''For Each dr In dt.Rows
'' Try
'' Select Case dr.RowState
'' Case DataRowState.Added
'' astep += 1
'' ' =======================================================
'' ' This "Try Catch" section created only if auto numbering
'' ' is NOT turned on for the table being updated. SEF...
'' ' It's a crude attempt at creating a unique number.
'' ' A more serious approach would be to use a GUID.
'' ' Use only if you decide not to have a sequence and a
'' ' trigger for the table.
'' ' =======================================================
'' Try
'' 'ds.Tables(tblIndex).Rows(rwIndex).Item(0) = astep
'' Catch
'' ' ignore the error corrected integer identity so don't randomize it
'' End Try
'' dr.Item("createdDate") = Now
'' dr.Item("changedDate") = Now
'' Case DataRowState.Modified
'' dr.Item("changedDate") = Now
'' End Select
'' Catch ex As Exception
'' conn.Close()
'' conn.Dispose()
'' Throw New ArgumentException(" Error: update_datasets " & ex.Message)
'' End Try
'' rwIndex += 1
''Next
selectstmt = "SELECT * From " & dt.TableName & " Where " & dt.Columns(0).ColumnName & " = " & 0
da = New OracleDataAdapter(selectstmt, m_conn)
Dim bldr As OracleCommandBuilder = New OracleCommandBuilder(da)
AddHandler da.RowUpdated, New Oracle.DataAccess.Client.OracleRowUpdatedEventHandler(AddressOf da_RowUpdated)
Dim insCmd As OracleCommand = Nothing
Try
insCmd = CType(bldr.GetInsertCommand(), OracleCommand)
Catch ex As Exception
Throw New Exception("")
End Try
insCmd.CommandText += " returning " + dt.Columns(0).ColumnName + " into :seqno"
insCmd.Parameters.Add(New OracleParameter("seqno", OracleDbType.Int16, _
4, ParameterDirection.Output, False, CType(0, System.Byte), CType(0, _
System.Byte), dt.Columns(0).ColumnName, DataRowVersion.Current, Nothing))
da.InsertCommand = insCmd
Try
' ===========================
da.Update(ds, dt.TableName)
' ===========================
Catch ex As Exception
Throw New ArgumentException(" Error: update_datasets_return " & ex.Message)
End Try
Next
m_conn.Close()
m_conn.Dispose()
Return ds
End Function
Friend Shared Sub da_RowUpdated(ByVal sender As Object, ByVal e As OracleRowUpdatedEventArgs)
If e.StatementType = StatementType.Insert Then
e.Row(0) = Int64.Parse(e.Command.Parameters("seqno").Value.ToString())
End If
End Sub
' ================================================================================
' Notes:
' =================== How To -- Sample section for PL/SQL ==================================
' myTrigger, myTable, mySequence, and myColumn are values you need to supply.
' Note: A trigger needs to be created for each table.
' A sequence needs to be created only once and referenced each time
' in the trigger(s). Or you could create a new sequence each time you
' create a trigger. Sort of a waste of effort.
' Explanation:
' myTrigger = The name you are giving this trigger.
' If a trigger with same name already
' exist, it will be overwritten.
' myTable = Table you want to add the sequence numbers to.
' mySequence = Sequence counter you created. Whatever name you called it.
' myColumn = The column to update with the sequence number.
' =================================================================================
' -- Run in PL/SQL or create at DB. --
' create or replace trigger myTrigger
' before insert on myTable for each row
' begin
' select mySequence.nextval into :new.myColumn from dual ;
' end;
' -- Run in PL/SQL or create at DB. --
' create sequence mySequence
' MINVALUE 1
' START WITH 1
' INCREMENT BY 1
' NOCACHE; can be set to CACHE but sequence may contain gaps.
' Explanation of CACHE from: http://www.techonthenet.com/oracle/sequences.php
' With respect to a sequence, the CACHE option specifies how many sequence
' values will be stored in memory for faster access. The downside of creating
' a sequence with a CACHE is that if a system failure occurs, all cached
' sequence values that have not be used, will be "lost". This results in
' a "gap" in the assigned sequence values. When the system comes back up,
' Oracle will CACHE new numbers from where it left off in the sequence,
' ignoring the so called "lost" sequence values.
' Note: To recover the lost sequence values, you can always execute an
' ALTER SEQUENCE command to reset the counter to the correct value.
' NOCACHE means that none of the sequence values are stored in memory.
' This option may sacrifice some performance, however, you should not encounter
' a gap in the assigned sequence values.
End Class
C#:
using System;
using System.Data;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
public class OracleUpdater2
private static OracleConnection m_conn;
private static OracleDataAdapter da = new OracleDataAdapter();
private static OracleConnection conn = new OracleConnection();
public static DataTable load_it(string constr, string strqry, string tblName)
// =====================================================================
// constr = User Id=myUser;Password=myPass";Data Source=myDataSource
// strqry = Select * from something?
// tblName = The table name to fill.
// =====================================================================
conn = new OracleConnection(constr);
conn.Open();
da = new OracleDataAdapter(strqry, conn);
OracleCommandBuilder bldr = new OracleCommandBuilder(da);
DataTable dt = new DataTable(tblName);
da.Fill(dt);
conn.Dispose();
return dt;
public static DataSet update_datasets_return(string constr, DataSet ds)
//'ByRef ds As DataSet)
string selectstmt = null;
m_conn = new OracleConnection(constr);
try
m_conn.Open();
catch (Exception ex)
throw new ArgumentException(" Error: connection lost." + ex.Message);
foreach (DataTable dt in ds.Tables)
selectstmt = "SELECT * From " + dt.TableName + " Where " +
dt.Columns[0].ColumnName + " = " + 0;
da = new OracleDataAdapter(selectstmt, m_conn);
OracleCommandBuilder bldr = new OracleCommandBuilder(da);
da.RowUpdated += new
Oracle.DataAccess.Client.OracleRowUpdatedEventHandler(da_RowUpdated);
OracleCommand insCmd = null;
try
insCmd = (OracleCommand)(bldr.GetInsertCommand());
catch (Exception ex)
throw new Exception("" + ex.Message);
insCmd.CommandText += " returning " + dt.Columns[0].ColumnName + " into
:seqno";
insCmd.Parameters.Add(new OracleParameter("seqno", OracleDbType.Int16, 4,
ParameterDirection.Output, false, System.Convert.ToByte(0),
System.Convert.ToByte(0), dt.Columns[0].ColumnName, DataRowVersion.Current,
null));
da.InsertCommand = insCmd;
try
// ===========================
da.Update(ds, dt.TableName);
// ===========================
catch (Exception ex)
throw new ArgumentException(" Error: update_datasets_return " +
ex.Message);
m_conn.Close();
m_conn.Dispose();
return ds;
If you need a working program of how this works, let me know.

Oh my god, it is too long! You definitely check out types, casting and especially ODP.Net (it does everything for you)... etc. They can help you to simplify your code. I do not have enough time to copy paste it to Studio and understand and solve your issue, so I got title of your message as your main question.
In Oracle, you can create an autonumber field by using sequences object. This is really useful when you need to create a unique number to act as a primary key.
Basically you can create a sequence simply typing;
CREATE SEQUENCE MY_SEQUENCE;
now you have a sequence called "MY_SEQUENCE"... Then, I advice you select a number from sequence;
select MY_SEQUENCE.nextval from dual;
I said I advice actually kinda must, although it called sequence, I cannot be sequential. Do not even try to predict the value. You can be sure that it is unique number so you can use it.
Then insert you record and use that number part of your primary key. I think that's it. Have fun.

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Dear Experts,
As you know while processing external services using control key PM03, a service PR will be generated for the service selected from the agreement or contract & from there we will create PO.
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Dear,
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Thanks & Best regards,
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Hi,
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You could also add a shape and use that as an image mask which includes a stencil option.
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Hello,
I'm using New-WebServiceProxy to work with a web service... when I call methods of the web service powershell auto generates types, for example, things like "Microsoft.PowerShell.Commands.NewWebserviceProxy.AutogeneratedTypes.WebServiceProxy1_webservices_awebservicepage_asmx.TheMethodReturnObjectType"
1. should I just use that type name in my ps1xml formatting file? I'm wondering if that will be fragile... seems fragile like 'webServiceProxy1' for example, what if there is some scenario it uses '2'? Not sure if I can count on that being consistent?
2. I started creating custom objects and adding my own type name to them so that type name could be used in the ps1xml file. This works fine. However so far it was for web service methods that returned single instance results.. now I hit a point where I'm
calling a web service method that will return a collection... so I'm wondering if it would be better to just use the auto generated type name in the ps1xml or, as I would need to do in this case, actually enter a foreach loop to create a new custom object
for every object in the returned collection? In other words, for the web service methods I've used so far for this, I simply created my custom object and write-output... for the case of the collection, I would be new-object'ing and write-output'ing within
that foreach loop.. wondering about performance issues, or if it's just overkill when I could just put that auto generated type name in the ps1xml file and be done with it...
not sure if I've asked that very clearly...
essentially, I'm wondering if it's overkill (from a resource usage perspective) to be creating these custom objects in the case of when there will be a collection, with potentially hundreds of items, when the only reason I'm doing it is for display purposes...
if it were not an autogenerated type I would simply use the type name in the ps1xml, I'm just not sure if I can do that in this case as I don't know if that typename will *always* be the same?
any input would be appreciated, thanks

Hi DJC,
I haven't rexperienced this, however, to create a .ps1xml file, these examples may be helpful for you:
Creating a module for powershell with a format file
discutils / utils / DiscUtils.PowerShell / DiscUtils.Format.ps1xml
about_Format.ps1xml
I hope this helps.

Auto generate mask from motion?

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