PETRONODE - SlideComposer-13

Clipping Techlog Plots

Use either inside or outside Techlog

Depending on the size of the well, Techlog tends to leave blank space at the bottom of the log plots. The Petronode.Clipimage utility is provided to crop the plots from top and bottom for use on montages. Besides the plot cropping, it is a convenient way to extract log inserts and other such graphics from plots.

Petronode.ClipImage.exe

The utility crops a predefined number of pixels from the top, then removes the blank space from the image bottom. The blank space is defined as all pixels in the row being brighter than (R>200 and G>200 and B>200).

The CLI is as following:

    Clip_Image.exe input_file output_file /s= /g= /c
        input_file - file to process
        output_file (optional) - file to write to. It omitted, the input file is overwritten
        /s=0 (optional) - number of pixels to skip from the top
        /g=0 (optional) - minimum number of pixels to get from the top
        /c (optional) - clip empty pixels from the bottom

The following Python script can be used inside or outside Techlog

Download code.

#
# Clipping a log file
#
import os
import subprocess

#
# location of Petronode install folder
#
cBatchProcessorFolder = "C:\\Program Files\\Petronode"

#
# clips an image:
# skips topPixel from the top
# includes getPixels as minimum
# clips white pixels from the bottom
#
def Clip_Image_File ( workfolder, input, output="", topPixel=0, getPixels=0, clipBottom = True):
    Params = [os.path.join( cBatchProcessorFolder, "Petronode.ClipImage.exe")]
    Params += [ os.path.join( workfolder, input)]
    if output != "" : Params += [ os.path.join( workfolder, output)]
    if topPixel > 0 : Params += [ "/s=" + str(topPixel)]
    if getPixels > 0 : Params += [ "/g=" + str(getPixels)]
    if clipBottom: Params += [ "/c"]
    subprocess.call( Params)

#
# Clip test image to the rectangle 
#
Clip_Image_File ( ".", "Test.png", "Test_out.png", 10)


#
# Checking the image properties
#
import os
import subprocess

#
# location of Petronode install folder
#
cBatchProcessorFolder = "C:\\Program Files\\Petronode"

#
# gets image properties
#
def Get_Image_Property ( workfolder, input, property="Y"):
    Params = [os.path.join( cBatchProcessorFolder, "Petronode.CheckImage.exe")]
    Params += [ os.path.join( workfolder, input)]
    Params += [ "/" + property.upper()]
    return subprocess.call( Params)

label = "The file is "
label += str( Get_Image_Property( ".", "Test.png", "X")) + "x"
label += str( Get_Image_Property( ".", "Test.png", "Y")) + " pixels, " 
label += str( Get_Image_Property( ".", "Test.png", "S")) + " bytes."

print (label)


PETRONODE Home SlideComposer Overview UI Operation CLI Operation Composer Definition Language Comments Slide definition Image plotting Text plotting Shape plotting Recolor Raster plotting Image data extraction Python examples Clipping Techlog Plots Making a Blank Image DigiPaint Digitizer DigiFitter Toolbox PETRONODE Contacts	Software Manual Pages Clipping Techlog Plots Use either inside or outside Techlog Depending on the size of the well, Techlog tends to leave blank space at the bottom of the log plots. The Petronode.Clipimage utility is provided to crop the plots from top and bottom for use on montages. Besides the plot cropping, it is a convenient way to extract log inserts and other such graphics from plots. Petronode.ClipImage.exe The utility crops a predefined number of pixels from the top, then removes the blank space from the image bottom. The blank space is defined as all pixels in the row being brighter than (R>200 and G>200 and B>200). The CLI is as following: Clip_Image.exe input_file output_file /s= /g= /c input_file - file to process output_file (optional) - file to write to. It omitted, the input file is overwritten /s=0 (optional) - number of pixels to skip from the top /g=0 (optional) - minimum number of pixels to get from the top /c (optional) - clip empty pixels from the bottom The following Python script can be used inside or outside Techlog Download code. # # Clipping a log file # import os import subprocess # # location of Petronode install folder # cBatchProcessorFolder = "C:\\Program Files\\Petronode" # # clips an image: # skips topPixel from the top # includes getPixels as minimum # clips white pixels from the bottom # def Clip_Image_File ( workfolder, input, output="", topPixel=0, getPixels=0, clipBottom = True): Params = [os.path.join( cBatchProcessorFolder, "Petronode.ClipImage.exe")] Params += [ os.path.join( workfolder, input)] if output != "" : Params += [ os.path.join( workfolder, output)] if topPixel > 0 : Params += [ "/s=" + str(topPixel)] if getPixels > 0 : Params += [ "/g=" + str(getPixels)] if clipBottom: Params += [ "/c"] subprocess.call( Params) # # Clip test image to the rectangle # Clip_Image_File ( ".", "Test.png", "Test_out.png", 10) # # Checking the image properties # import os import subprocess # # location of Petronode install folder # cBatchProcessorFolder = "C:\\Program Files\\Petronode" # # gets image properties # def Get_Image_Property ( workfolder, input, property="Y"): Params = [os.path.join( cBatchProcessorFolder, "Petronode.CheckImage.exe")] Params += [ os.path.join( workfolder, input)] Params += [ "/" + property.upper()] return subprocess.call( Params) label = "The file is " label += str( Get_Image_Property( ".", "Test.png", "X")) + "x" label += str( Get_Image_Property( ".", "Test.png", "Y")) + " pixels, " label += str( Get_Image_Property( ".", "Test.png", "S")) + " bytes." print (label)
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