How to do capture() with an getScore = 0.91 or greater?

--- 1. the function capture as such only makes a screenshot of the specified area and puts the image as .png into a file. it is a 1-to-1 representation. It seems, that the capture does not check for exactly 4 parameters, since it does not error.

--- 2. similarity only makes sense, when you try to find something based on an image and it may be, that the searched visible object is not exactly the same as the captured probe (some different color, some shadow, ...). For this you have the class Pattern, that allows to specify a similarity for the search.
The standard similarity value is 0.7, which works in many cases. you will find, that many images will be found with a similarity (score) of above 0.9, since they are nearly exactly the same (mostly some differences in the background).
There is no "best" to use similarity (like your 0.91). This depends on your needs and situation. The only experience for the current version is that it is better to use 0.99 than 1.0 to get an exact match (seems to be a bug).

--- 3. when using shutil.move, the specified path has to exist (I doubt it does, since the error seams to be related to this operation).

--- 4. you write
m = find(TempPath + "blah.png")
if m:

if the image cannot be found on the screen at that moment, you will get a FindFailed error and the script stops. in this case you will not get to the if m:
So use exists() instead.

--- 5. my version

#Capture the view
newarea = capture (1, 171, 1437, 668)
print "File ", newarea
shutil.move(newarea, TempPath + "blah.png") # TempPath has to exist
sleep(2)

#Check the captured view, has to be visible on the screen.
m = exists(Pattern(TempPath + "blah.png").similar(0.91))
if m:
  print m.getScore
else:
  print "epic fail"

--- 6. comment/question
The area, you are trying to "compare" (something should change within 2 seconds, otherwise your snippet does not make sense) is rather big. What is your intention?

Thanks for the quick feedback. As to my intention (I.e. --- 6. comment/question), I a checking the 3D renders on a web browsers and eventually mobile devices. Click on the following for further details:

http://www.youtube.com/watch?v=YJ3nFBUzmX0

I forgot to mention 'TempPath' is a variable. I.e. TempPath = "C:\\Sikuli\\images\\temp\\Compares\\"

I tried the exists() with similar(.0.91), but it returned errors. I executed a bunch of captures of the same size and got a variety of getScore values returned. So, I guess a '1 to 1 representation' or '0.99' similarity may be out of the question. Below are the values:

#=====================================================
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 2
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.90, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 3
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.90, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 4
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.89, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 5
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.89, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 6
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.89, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 7
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.88, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 8
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.87, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 9
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.84, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 10
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.84, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 11
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.84, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 12
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.84, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 13
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.85, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 14
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.85, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 15
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.85, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 16
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.86, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 17
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.87, target=center>
Click 2D coordinate F. Dead-center.
[sikuli] click on (699,495), MOD: 0
Page up to slice 18
<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668] score=0.89, target=center>
[sikuli] click on (488,155), MOD: 0

#=====================================================

I tried the following after a capture but got errors as well:
newarea = capture (1, 171, 1437, 668)
print "File ", newarea
shutil.move(newarea, TempPath + "blah1.png")
sleep(2)

m = exists(Pattern(CompPath + "blah1.png").similar(m.getScore))
if m:
 print "The similarity check passed."
 print m.getScore
else:
 print "Exists fail:"
 print m.getScore

Result:
    m = exists(Pattern(CompPath + "CHK_2d_CoursePageBC-TC.png").similar(m.getScore))
UnboundLocalError: local variable 'm' referenced before assignment

Any suggestions?

Cheers,

oops, my bad...

'CompPath' should be 'TempPath'

Result:
    m = exists(Pattern(CompPath + "CHK_2d_CoursePageBC-TC.png").similar(m.getScore))
UnboundLocalError: local variable 'm' referenced before assignment

It means what it says: on the right side you have m.getScore, but m is not yet defined as local variable.

Tip: you have to say getScore(), to call the function. otherwise you address the function object as such. Print is so intelligent to print a string representation (<bound method edu.mit.csail.uid.Match.getScore of Match[1,171 1437x668]....).

With such a large area, you will never get a similarity near one (thats caused by the internal processing).

But I'm still not sure, what your problem is.

If I will never get a similarity near one for such a big area then so be it. I'll be happy if Sikuli returns a getScore of '0.8' or greater. What do you suggest to be a good area to capture so I can get a similarity near one?

Here's my pseudo thought process to give you an insight on my problem:

1) Create a script that will do a 3D manipulation of a data set.

2) I will execute the script once and it will do a capture() for every render/change to the data and place it in an image library. This will save me time in doing a manual capture for each view.

3) Once the initial run is completed, the capture() functions will be commented out and a check function will be enabled to ensure the .PNG exists. However, I want the similarity to try to match as close to one as possible, the check will do the 'm = exists(Pattern(CompPath + "Image_That_Was-Originally_Captured.png").similar(0.91)). If the .PNG similarity does not exist, then it will do another screen capture and place it in a temp folder. After that I will call an in-house tool to do a difference compare between the original captured .PNG and the current .PNG.

4) So here's my problem, if the similarity of getScore is returning different similarity values the the exist() compare check will always fail since it does not match 0.91. If I cannot get the simlarity to 0.91, is there a way for me to do a check like the following?

m= exists(Pattern(CompPath + "Image_That_Was-Originally_Captured.png").similar(>=0.8))

Hope this helps.

Cheers

Thanks for the quick and detailed reply. I will keep playing with the capture range and timing to see how it goes. If not, I can live with the similarity of 0.80. :-)

Cheers,

Thanks RaiMan, that solved my question.