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MBSOct2019CologneDE

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GM16ImageMBS.getConstPixels(x as Integer, y as Integer, columns as Integer, rows as Integer) as Ptr
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Transfers read-only pixels from the image to the pixel cache as defined by the specified region

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GM16ImageMBS.GetEXIFOrientation(byref orientation as integer) as boolean
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 18.4 Yes Yes Yes Yes No
Function: Queries orientation from EXIF.
Notes:
Orientation is set to number from 0 to 8 depending on rotation. -1 if unknown.
This function can only read orientation, if there is an EXIF block in image.
Returns true for success and false for failure.

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GM16ImageMBS.getPixels(x as Integer, y as Integer, columns as Integer, rows as Integer) as Ptr
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Transfers pixels from the image to the pixel cache as defined by the specified region.
Example:
dim f as FolderItem = SpecialFolder.Desktop.Child("test.jpg")
dim g as new GM16ImageMBS(f)

// get pointer to some pixels to write
dim x as ptr = g.getPixels(0, 0, 100, 100)

// draw a red line to the pixel buffer
dim o as Integer
for i as Integer = 0 to 99
o = 100 * i + i
x.UInt32(o * 4) = &hFFFF0000
next

// write back
g.syncPixels

// show
me.Backdrop = g.CopyPicture
Notes: Modified pixels may be subsequently transferred back to the image via syncPixels. This method is valid for DirectClass images.

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GM16ImageMBS.Graphics as GM16GraphicsMBS
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Creates a graphics object for this image.
Example:
dim g as new GM16GeometryMBS(500,500)
dim c as new GM16ColorRGBMBS("white") // white
dim image as new GM16ImageMBS(g, c)

image.strokeColor = new GM16ColorRGBMBS("red") // Outline color
image.fillColor = new GM16ColorRGBMBS("green") // Fill color
image.strokeWidth = 5

dim draw as GM16GraphicsMBS = image.Graphics

// Draw a circle
draw.Circle(250, 250, 120, 150)

Backdrop=image.CopyPicture
Notes: Using the graphics object you can draw on the image.

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GM16ImageMBS.haldClut(image as GM16ImageMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Apply a color lookup table (Hald CLUT) to the image.

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GM16ImageMBS.implode(factor as Double=0.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Implode image (special effect).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.implode(0.3)

Backdrop=image.CopyPicture

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GM16ImageMBS.label(text as string)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Assign a label to an image.
Notes: Use this option to assign a specific label to the image. Optionally you can include the image filename, type, width, height, or scene number in the label by embedding special format characters. If the first character of string is @, the image label is read from a file titled by the remaining characters in the string. When converting to Postscript, use this option to specify a header string to print above the image.

See also:

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GM16ImageMBS.level(black_point as Double, white_point as Double, mid_point as Double=1.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Level image to increase image contrast, and/or adjust image gamma.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.level(0, 127.0)

Backdrop=image.CopyPicture
Notes: Adjust the levels of the image by scaling the colors falling between specified white and black points to the full available quantum range. The parameters provided represent the black, mid (gamma), and white points. The black point specifies the darkest color in the image. Colors darker than the black point are set to zero. Mid point (gamma) specifies a gamma correction to apply to the image. White point specifies the lightest color in the image. Colors brighter than the white point are set to the maximum quantum value. The black and white point have the valid range 0 to MaxRGB while mid (gamma) has a useful range of 0 to ten:

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GM16ImageMBS.levelChannel(channel as Integer, black_point as Double, white_point as Double, mid_point as Double=1.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Level image channel to increase image contrast, and/or adjust image gamma.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.levelChannel(image.BlueChannel, 0, 127.0)

Backdrop=image.CopyPicture
Notes: Adjust the levels of the image channel by scaling the colors falling between specified white and black points to the full available quantum range. The parameters provided represent the black, mid (gamma), and white points. The black point specifies the darkest color in the image. Colors darker than the black point are set to zero. Mid point (gamma) specifies a gamma correction to apply to the image. White point specifies the lightest color in the image. Colors brighter than the white point are set to the maximum quantum value. The black and white point have the valid range 0 to MaxRGB while mid (gamma) has a useful range of 0 to ten.

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GM16ImageMBS.magnify
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Magnify image by integral size (double the dimensions)
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.magnify

Backdrop=image.CopyPicture

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GM16ImageMBS.map(mapImage as GM16ImageMBS, dither as boolean=false)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Remap image colors with closest color from a reference image.
Example:
// some picture we want to map colors
dim pic as Picture = LogoMBS(500)

// build a picture with palette
dim backgroundColor as new GM16ColorMBS(255,255,255) // white
dim size as new GM16GeometryMBS(10,10)

dim i as new GM16ImageMBS(pic)
dim x as new GM16ImageMBS(size, backgroundColor)

x.pixelColor(0,0) = new GM16ColorMBS(0 ,0 ,0 ) // black
x.pixelColor(0,1) = new GM16ColorMBS(255,0 ,0 ) // red
x.pixelColor(0,2) = new GM16ColorMBS(0 ,255,0 ) // green
x.pixelColor(0,3) = new GM16ColorMBS(0 ,0 ,255) // blue
x.pixelColor(0,4) = new GM16ColorMBS(255,255,0 ) // yellow
x.pixelColor(0,5) = new GM16ColorMBS(0 ,255,255) // cyan
x.pixelColor(0,6) = new GM16ColorMBS(255,0 ,255) // magenta

// do the map
i.map(x, false)

// convert result from palette picture to bitmap picture
i.type = i.TrueColorType

// and copy picture to backdrop
Backdrop = i.CopyPicture
Notes: Set dither to true in to apply Floyd/Steinberg error diffusion to the image. By default, color reduction chooses an optimal set of colors that best represent the original image. Alternatively, you can choose a particular set of colors from an image file with this option.

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GM16ImageMBS.matteFloodfill(target as GM16ColorMBS, opacity as UInt32, x as Integer, y as Integer, PaintMethod as Integer)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Floodfill designated area with a replacement opacity value.

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GM16ImageMBS.medianFilter(radius as Double=0.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Filter image by replacing each pixel component with the median color in a circular neighborhood.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.medianFilter(10)

Backdrop=image.CopyPicture

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GM16ImageMBS.minify
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Reduce image by integral (half) size.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.minify

Backdrop=image.CopyPicture

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GM16ImageMBS.modequalizeifyImage
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Not documented.

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GM16ImageMBS.modifyImage
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Prepare to update image (copy if reference > 1).
Notes: Normally Magick++'s implicit reference counting takes care of all instance management. In the rare case that the automatic instance management does not work, use this method to assure that there is only one reference to the image to be modified. It should be used in the cases where a GraphicsMagick C function is used directly on an image which may have multiple references:

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GM16ImageMBS.modulate(brightness as Double, saturation as Double, hue as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Modulate percent hue, saturation, and brightness of an image.
Example:
dim logo as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(logo)

image.type = image.TrueColorType

// brightness 150%
image.modulate(150,100,100)
backdrop = image.CopyPicture
Notes: Modulation of saturation and brightness is as a ratio of the current value (100 for no change). Modulation of hue is an absolute rotation of -180 degrees to +180 degrees from the current position corresponding to an argument range of 0 to 200 (100 for no change).

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GM16ImageMBS.montageGeometry as GM16GeometryMBS
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Tile size and offset within an image montage.
Notes: Only valid for montage images.

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GM16ImageMBS.motionBlur(radius as Double, sigma as Double, angle as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Motion blur image with specified blur factor.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.motionBlur(30,10,90)

Backdrop=image.CopyPicture
Notes: The radius parameter specifies the radius of the Gaussian, in pixels, not counting the center pixel. The sigma parameter specifies the standard deviation of the Laplacian, in pixels. The angle parameter specifies the angle the object appears to be comming from (zero degrees is from the right).

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GM16ImageMBS.negate(grayscale as boolean=false)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Negate colors in image.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.negate

Backdrop=image.CopyPicture
Notes: Set grayscale to only negate grayscale values in image.

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GM16ImageMBS.normalize
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Normalize image (increase contrast by normalizing the pixel values to span the full range of color values).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.normalize

Backdrop=image.CopyPicture

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GM16ImageMBS.oilPaint(radius as Double=3.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Oilpaint image (image looks like an oil painting).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.oilPaint

Backdrop=image.CopyPicture

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GM16ImageMBS.opacity(opacity as UInt32)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Set or attenuate the opacity channel in the image.
Notes: If the image pixels are opaque then they are set to the specified opacity value, otherwise they are blended with the supplied opacity value. The value of opacity ranges from 0 (completely opaque) to MaxRGB. The defines OpaqueOpacity and TransparentOpacity are available to specify completely opaque or completely transparent, respectively.

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GM16ImageMBS.opaque(opaqueColor as GM16ColorMBS, penColor as GM16ColorMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Change color of specified opaque pixel to specified pen color.

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GM16ImageMBS.ping(data as GM16BlobMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Reads information for an image from the blob.
Notes: Ping is similar to read except only enough of the image is read to determine the image columns, rows, and filesize. Access the columns, rows, and fileSize attributes after invoking ping. The image pixels are not valid after calling ping.

See also:

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GM16ImageMBS.ping(file as folderitem)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Reads information for an image from the file.
Example:
dim f as FolderItem = SpecialFolder.Desktop.Child("test.jpg")

// try with Constructor (same as read)
dim t1 as Double = Microseconds
dim g1 as new GM16ImageMBS(f)

// now just ping
dim t2 as Double = Microseconds
dim g2 as new GM16ImageMBS
g2.ping(f)

// or read
dim t3 as Double = Microseconds
dim g3 as new GM16ImageMBS
g3.read(f)

dim t4 as Double = Microseconds

// show speeds
MsgBox str(T4-t3)+" µs for read"+EndOfLine+_
str(T3-t2)+" µs for ping"+EndOfLine+_
str(T2-t1)+" µs for Constructor"
Notes: Ping is similar to read except only enough of the image is read to determine the image columns, rows, and filesize. Access the columns, rows, and fileSize attributes after invoking ping. The image pixels are not valid after calling ping.

See also:

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GM16ImageMBS.ping(Path as string)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Reads information for an image from the image specification.
Notes: Ping is similar to read except only enough of the image is read to determine the image columns, rows, and filesize. Access the columns, rows, and fileSize attributes after invoking ping. The image pixels are not valid after calling ping.

See also:

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GM16ImageMBS.pixelColor(x as UInt32, y as UInt32) as GM16ColorMBS
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
property GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Get/set pixel color at location x & y.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)
dim c as new GM16ColorMBS("red")

for x as Integer = 240 to 260
image.pixelColor(x,250)=c
next

for y as Integer = 240 to 260
image.pixelColor(250,y)=c
next

Backdrop=image.CopyPicture
Notes: (Read and Write computed property)

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GM16ImageMBS.profile(name as string) as GM16BlobMBS
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
property GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Get or set a named profile.
Notes:
Add or remove a named profile to/from the image. Remove the profile by passing an empty Blob (e.g. Blob()). Valid names are "*", "8BIM", "ICM", "IPTC", or a user/format-defined profile name.

Retrieve a named profile from the image. Valid names are: "8BIM", "8BIMTEXT", "APP1", "APP1JPEG", "ICC", "ICM", & "IPTC" or an existing user/format-defined profile name
(Read and Write computed property)

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GM16ImageMBS.quantize(measureError as boolean=false)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 14.1 Yes Yes Yes Yes No
Function: Quantize image (reduce number of colors).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GM16ImageMBS(p)

image.quantize

image.type = image.TrueColorType
Backdrop=image.CopyPicture
Notes: Set measureError to true in order to calculate error attributes.

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