-#!/home/software/ruby-1.8.4/bin/ruby -w
#
# Simple demo program for RMagick
#
# Concept and algorithms lifted from Magick++ demo script written
# by Bob Friesenhahn.
#
-require 'RMagick'
-include Magick
+require 'rmagick'
#
# RMagick version of Magick++/demo/demo.cpp
#
-Font = "Helvetica"
+FONT = 'Helvetica'
begin
- puts "Read images..."
-
- model = ImageList.new("images/model.miff")
- model.border_color = "black"
- model.background_color = "black"
- model.cur_image[:Label] = "RMagick"
-
- smile = ImageList.new("images/smile.miff")
- smile.border_color = "black"
- smile.cur_image[:Label] = "Smile"
-
- #
- # Create image stack
- #
- puts "Creating thumbnails"
-
- # Construct an initial list containing five copies of a null
- # image. This will give us room to fit the logo at the top.
- # Notice I specify the width and height of the images via the
- # optional "size" attribute in the parm block associated with
- # the read method. There are two more examples of this, below.
- example = ImageList.new
- 5.times { example.read("NULL:black") { self.size = "70x70"} }
-
- puts " add noise..."
- example << model.add_noise(LaplacianNoise)
- example.cur_image[:Label] = "Add Noise"
-
- puts " annotate..."
- example << model.cur_image.copy
- example.cur_image[:Label] = "Annotate"
- draw = Draw.new
- draw.annotate(example, 0, 0, 0, 20, "RMagick") {
- self.pointsize = 18;
- self.font = Font;
- self.stroke = "gold"
- self.fill = "gold"
- self.gravity = NorthGravity
- }
-
- puts " blur..."
- example << model.blur_image(0.0, 1.5)
- example.cur_image[:Label] = "Blur"
-
- puts " border..."
- example << model.border(6, 6, "gold")
- example.cur_image[:Label] = "Border"
-
- puts " channel..."
- example << model.channel(RedChannel)
- example.cur_image[:Label] = "Channel"
-
- puts " charcoal..."
- example << model.charcoal
- example.cur_image[:Label] = "Charcoal"
-
- puts " composite..."
- example << model.composite(smile, 35, 65, OverCompositeOp)
- example.cur_image[:Label] = "Composite"
-
- puts " contrast..."
- example << model.contrast(false)
- example.cur_image[:Label] = "Contrast"
-
- puts " convolve..."
- kernel = [ 1, 1, 1, 1, 4, 1, 1, 1, 1 ]
- example << model.convolve(3, kernel)
- example.cur_image[:Label] = "Convolve"
-
- puts " crop..."
- example << model.crop(25, 50, 80, 80)
- example.cur_image[:Label] = "Crop"
-
- puts " despeckle..."
- example << model.despeckle
- example.cur_image[:Label] = "Despeckle"
-
- puts " draw..."
- example << model.cur_image.copy
- example.cur_image[:Label] = "Draw"
- gc = Draw.new
- gc.fill "black"
- gc.fill_opacity 0
- gc.stroke "gold"
- gc.stroke_width 2
- gc.circle 60,90, 60,120
- gc.draw(example)
-
- puts " edge..."
- example << model.edge(0)
- example.cur_image[:Label] = "Detect Edges"
-
- puts " emboss..."
- example << model.emboss
- example.cur_image[:Label] = "Emboss"
-
- puts " equalize..."
- example << model.equalize
- example.cur_image[:Label] = "Equalize"
-
- puts " explode..."
- example << model.implode(-1)
- example.background_color = "#000000ff"
- example.cur_image[:Label] = "Explode"
-
- puts " flip..."
- example << model.flip
- example.cur_image[:Label] = "Flip"
-
- puts " flop..."
- example << model.flop
- example.cur_image[:Label] = "Flop"
-
- puts " frame..."
- example << model.frame
- example.cur_image[:Label] = "Frame"
-
- puts " gamma..."
- example << model.gamma_correct(1.6)
- example.cur_image[:Label] = "Gamma"
-
- puts " gaussian blur..."
- example << model.gaussian_blur(1, 1.5)
- example.cur_image[:Label] = "Gaussian Blur"
-
- # To add an Image in one of ImageMagick's built-in formats,
- # call the read method. The filename specifies the format and
- # any parameters it needs. The gradient format can be created in
- # any size. Specify the desired size by assigning it, in the form
- # "WxH", to the optional "size" attribute in the block associated
- # with the read method. Here we create a gradient image that is
- # the same size as the model image.
- puts " gradient..."
- example.read("gradient:#20a0ff-#ffff00") {
- self.size = Geometry.new(model.columns, model.rows)
- }
- example.cur_image[:Label] = "Gradient"
-
- puts " grayscale..."
- example << model.cur_image.quantize(256, GRAYColorspace)
- example.cur_image[:Label] = "Grayscale"
-
- puts " implode..."
- example << model.implode(0.5)
- example.cur_image[:Label] = "Implode"
-
- puts " median filter..."
- example << model.median_filter(0)
- example.cur_image[:Label] = "Median Filter"
-
- puts " modulate..."
- example << model.modulate(1.10, 1.10, 1.10)
- example.cur_image[:Label] = "Modulate"
-
- puts " monochrome..."
- example << model.cur_image.quantize(2, GRAYColorspace, false)
- example.cur_image[:Label] = "Monochrome"
-
- puts " negate..."
- example << model.negate
- example.cur_image[:Label] = "Negate"
-
- puts " normalize..."
- example << model.normalize
- example.cur_image[:Label] = "Normalize"
-
- puts " oil paint..."
- example << model.oil_paint(3.0)
- example.cur_image[:Label] = "Oil Paint"
-
- # The plasma format is very similar to the gradient format, above.
- puts " plasma..."
- example.read("plasma:fractal") {
- self.size = Geometry.new(model.columns, model.rows)
- }
- example.cur_image[:Label] = "Plasma"
-
- puts " quantize..."
- example << model.cur_image.quantize
- example.cur_image[:Label] = "Quantize"
-
- puts " raise..."
- example << model.raise
- example.cur_image[:Label] = "Raise"
-
- puts " reduce noise..."
- example << model.reduce_noise(3.0)
- example.cur_image[:Label] = "Reduce Noise"
-
- puts " resize..."
- example << model.resize(0.50)
- example.cur_image[:Label] = "Resize"
-
- puts " roll..."
- example << model.roll(20, 10)
- example.cur_image[:Label] = "Roll"
-
- puts " rotate..."
- example << model.rotate(45).transparent("black")
- example.cur_image[:Label] = "Rotate"
-
- puts " scale..."
- example << model.scale(0.60)
- example.cur_image[:Label] = "Scale"
-
- puts " segment..."
- example << model.segment
- example.cur_image[:Label] = "Segment"
-
- puts " shade..."
- example << model.shade(false, 30, 30)
- example.cur_image[:Label] = "Shade"
-
- puts " sharpen..."
- example << model.sharpen(0.0, 1.0)
- example.cur_image[:Label] = "Sharpen"
-
- puts " shave..."
- example << model.shave(10, 10)
- example.cur_image[:Label] = "Shave"
-
- puts " shear..."
- example << model.shear(45, 45).transparent("black")
- example.cur_image[:Label] = "Shear"
-
- puts " spread..."
- example << model.spread(3)
- example.cur_image[:Label] = "Spread"
-
- puts " solarize..."
- example << model.solarize(50.0)
- example.cur_image[:Label] = "Solarize"
-
- puts " swirl..."
- temp = model.copy
- temp.background_color = "#000000ff"
- example << temp.swirl(90)
- example.cur_image[:Label] = "Swirl"
-
- puts " unsharp mask..."
- example << model.unsharp_mask(0.0, 1.0, 1.0, 0.05)
- example.cur_image[:Label] = "Unsharp Mask"
-
- puts " wave..."
- temp = model.copy
- temp.cur_image[:Label] = "Wave"
- temp.matte = true
- temp.background_color = "#000000ff"
- example << temp.wave(25, 150)
-
- #
- # Create image montage - notice the optional
- # montage parameters are supplied via a block
- #
-
- puts "Montage images..."
-
- montage = example.montage {
- self.geometry = "130x194+10+5>"
- self.gravity = CenterGravity
- self.border_width = 1
- rows = (example.size + 4) / 5
- self.tile = Geometry.new(5,rows)
- self.compose = OverCompositeOp
-
- # Use the ImageMagick built-in "granite" format
- # as the background texture.
-
-# self.texture = Image.read("granite:").first
- self.background_color = "white"
- self.font = Font;
- self.pointsize = 18;
- self.fill = "#600"
- self.filename = "RMagick Demo"
-# self.shadow = true
-# self.frame = "20x20+4+4"
- }
-
- # Add the ImageMagick logo to the top of the montage. The "logo:"
- # format is a fixed-size image, so I don't need to specify a size.
- puts "Adding logo image..."
- logo = Image.read("logo:").first
- if /GraphicsMagick/.match Magick_version then
- logo.resize!(200.0/logo.rows)
- else
- logo.crop!(98, 0, 461, 455).resize!(0.45)
- end
-
- # Create a new Image for the composited montage and logo
- montage_image = ImageList.new
- montage_image << montage.composite(logo, 245, 0, OverCompositeOp)
-
- # Write the result to a file
- montage_image.compression = RunlengthEncodedCompression
- montage_image.matte = false
- puts "Writing image ./rm_demo_out.miff"
- montage_image.write "rm_demo_out.miff"
-
- # Uncomment the following lines to display image to screen
- # puts "Displaying image..."
- # montage_image.display
-
-rescue
- puts "Caught exception: #{$!}"
+ puts 'Read images...'
+
+ model = Magick::ImageList.new('../doc/ex/images/model.miff')
+ model.border_color = 'black'
+ model.background_color = 'black'
+ model.cur_image[:Label] = 'RMagick'
+
+ smile = Magick::ImageList.new('../doc/ex/images/smile.miff')
+ smile.border_color = 'black'
+ smile.cur_image[:Label] = 'Smile'
+
+ #
+ # Create image stack
+ #
+ puts 'Creating thumbnails'
+
+ # Construct an initial list containing five copies of a null
+ # image. This will give us room to fit the logo at the top.
+ # Notice I specify the width and height of the images via the
+ # optional "size" attribute in the parm block associated with
+ # the read method. There are two more examples of this, below.
+ example = Magick::ImageList.new
+ 5.times { example.read('NULL:black') { |options| options.size = '70x70' } }
+
+ puts ' add noise...'
+ example << model.add_noise(Magick::LaplacianNoise)
+ example.cur_image[:Label] = 'Add Noise'
+
+ puts ' annotate...'
+ example << model.cur_image.copy
+ example.cur_image[:Label] = 'Annotate'
+ draw = Magick::Draw.new
+ draw.annotate(example, 0, 0, 0, 20, 'RMagick') do |options|
+ options.pointsize = 18
+ options.font = FONT
+ options.stroke = 'gold'
+ options.fill = 'gold'
+ options.gravity = Magick::NorthGravity
+ end
+
+ puts ' blur...'
+ example << model.blur_image(0.0, 1.5)
+ example.cur_image[:Label] = 'Blur'
+
+ puts ' border...'
+ example << model.border(6, 6, 'gold')
+ example.cur_image[:Label] = 'Border'
+
+ puts ' channel...'
+ example << model.channel(Magick::RedChannel)
+ example.cur_image[:Label] = 'Channel'
+
+ puts ' charcoal...'
+ example << model.charcoal
+ example.cur_image[:Label] = 'Charcoal'
+
+ puts ' composite...'
+ example << model.composite(smile, 35, 65, Magick::OverCompositeOp)
+ example.cur_image[:Label] = 'Composite'
+
+ puts ' contrast...'
+ example << model.contrast(false)
+ example.cur_image[:Label] = 'Contrast'
+
+ puts ' convolve...'
+ kernel = [1, 1, 1, 1, 4, 1, 1, 1, 1]
+ example << model.convolve(3, kernel)
+ example.cur_image[:Label] = 'Convolve'
+
+ puts ' crop...'
+ example << model.crop(25, 50, 80, 80)
+ example.cur_image[:Label] = 'Crop'
+
+ puts ' despeckle...'
+ example << model.despeckle
+ example.cur_image[:Label] = 'Despeckle'
+
+ puts ' draw...'
+ example << model.cur_image.copy
+ example.cur_image[:Label] = 'Draw'
+ gc = Magick::Draw.new
+ gc.fill 'black'
+ gc.fill_opacity 0
+ gc.stroke 'gold'
+ gc.stroke_width 2
+ gc.circle 60, 90, 60, 120
+ gc.draw(example)
+
+ puts ' edge...'
+ example << model.edge(0)
+ example.cur_image[:Label] = 'Detect Edges'
+
+ puts ' emboss...'
+ example << model.emboss
+ example.cur_image[:Label] = 'Emboss'
+
+ puts ' equalize...'
+ example << model.equalize
+ example.cur_image[:Label] = 'Equalize'
+
+ puts ' explode...'
+ example << model.implode(-1)
+ example.background_color = '#000000ff'
+ example.cur_image[:Label] = 'Explode'
+
+ puts ' flip...'
+ example << model.flip
+ example.cur_image[:Label] = 'Flip'
+
+ puts ' flop...'
+ example << model.flop
+ example.cur_image[:Label] = 'Flop'
+
+ puts ' frame...'
+ example << model.frame
+ example.cur_image[:Label] = 'Frame'
+
+ puts ' gamma...'
+ example << model.gamma_correct(1.6)
+ example.cur_image[:Label] = 'Gamma'
+
+ puts ' gaussian blur...'
+ example << model.gaussian_blur(1, 1.5)
+ example.cur_image[:Label] = 'Gaussian Blur'
+
+ # To add an Image in one of ImageMagick's built-in formats,
+ # call the read method. The filename specifies the format and
+ # any parameters it needs. The gradient format can be created in
+ # any size. Specify the desired size by assigning it, in the form
+ # "WxH", to the optional "size" attribute in the block associated
+ # with the read method. Here we create a gradient image that is
+ # the same size as the model image.
+ puts ' gradient...'
+ example.read('gradient:#20a0ff-#ffff00') do |options|
+ options.size = Magick::Geometry.new(model.columns, model.rows)
+ end
+ example.cur_image[:Label] = 'Gradient'
+
+ puts ' grayscale...'
+ example << model.cur_image.quantize(256, Magick::GRAYColorspace)
+ example.cur_image[:Label] = 'Grayscale'
+
+ puts ' implode...'
+ example << model.implode(0.5)
+ example.cur_image[:Label] = 'Implode'
+
+ puts ' median filter...'
+ example << model.median_filter(0)
+ example.cur_image[:Label] = 'Median Filter'
+
+ puts ' modulate...'
+ example << model.modulate(1.10, 1.10, 1.10)
+ example.cur_image[:Label] = 'Modulate'
+
+ puts ' monochrome...'
+ example << model.cur_image.quantize(2, Magick::GRAYColorspace, false)
+ example.cur_image[:Label] = 'Monochrome'
+
+ puts ' negate...'
+ example << model.negate
+ example.cur_image[:Label] = 'Negate'
+
+ puts ' normalize...'
+ example << model.normalize
+ example.cur_image[:Label] = 'Normalize'
+
+ puts ' oil paint...'
+ example << model.oil_paint(3.0)
+ example.cur_image[:Label] = 'Oil Paint'
+
+ # The plasma format is very similar to the gradient format, above.
+ puts ' plasma...'
+ example.read('plasma:fractal') do |options|
+ options.size = Magick::Geometry.new(model.columns, model.rows)
+ end
+ example.cur_image[:Label] = 'Plasma'
+
+ puts ' quantize...'
+ example << model.cur_image.quantize
+ example.cur_image[:Label] = 'Quantize'
+
+ puts ' raise...'
+ example << model.raise
+ example.cur_image[:Label] = 'Raise'
+
+ puts ' reduce noise...'
+ example << model.reduce_noise(3.0)
+ example.cur_image[:Label] = 'Reduce Noise'
+
+ puts ' resize...'
+ example << model.resize(0.50)
+ example.cur_image[:Label] = 'Resize'
+
+ puts ' roll...'
+ example << model.roll(20, 10)
+ example.cur_image[:Label] = 'Roll'
+
+ puts ' rotate...'
+ example << model.rotate(45).transparent('black')
+ example.cur_image[:Label] = 'Rotate'
+
+ puts ' scale...'
+ example << model.scale(0.60)
+ example.cur_image[:Label] = 'Scale'
+
+ puts ' segment...'
+ example << model.segment
+ example.cur_image[:Label] = 'Segment'
+
+ puts ' shade...'
+ example << model.shade(false, 30, 30)
+ example.cur_image[:Label] = 'Shade'
+
+ puts ' sharpen...'
+ example << model.sharpen(0.0, 1.0)
+ example.cur_image[:Label] = 'Sharpen'
+
+ puts ' shave...'
+ example << model.shave(10, 10)
+ example.cur_image[:Label] = 'Shave'
+
+ puts ' shear...'
+ example << model.shear(45, 45).transparent('black')
+ example.cur_image[:Label] = 'Shear'
+
+ puts ' spread...'
+ example << model.spread(3)
+ example.cur_image[:Label] = 'Spread'
+
+ puts ' solarize...'
+ example << model.solarize(50.0)
+ example.cur_image[:Label] = 'Solarize'
+
+ puts ' swirl...'
+ temp = model.copy
+ temp.background_color = '#000000ff'
+ example << temp.swirl(90)
+ example.cur_image[:Label] = 'Swirl'
+
+ puts ' unsharp mask...'
+ example << model.unsharp_mask(0.0, 1.0, 1.0, 0.05)
+ example.cur_image[:Label] = 'Unsharp Mask'
+
+ puts ' wave...'
+ temp = model.copy
+ temp.cur_image[:Label] = 'Wave'
+ temp.background_color = '#000000ff'
+ example << temp.wave(25, 150)
+
+ #
+ # Create image montage - notice the optional
+ # montage parameters are supplied via a block
+ #
+
+ puts 'Montage images...'
+
+ montage = example.montage do |options|
+ options.geometry = '130x194+10+5>'
+ options.gravity = Magick::CenterGravity
+ options.border_width = 1
+ rows = (example.size + 4) / 5
+ options.tile = Magick::Geometry.new(5, rows)
+ options.compose = Magick::OverCompositeOp
+
+ # Use the ImageMagick built-in "granite" format
+ # as the background texture.
+
+ # options.texture = Image.read("granite:").first
+ options.background_color = 'white'
+ options.font = FONT
+ options.pointsize = 18
+ options.fill = '#600'
+ options.filename = 'RMagick Demo'
+ # options.shadow = true
+ # options.frame = "20x20+4+4"
+ end
+
+ # Add the ImageMagick logo to the top of the montage. The "logo:"
+ # format is a fixed-size image, so I don't need to specify a size.
+ puts 'Adding logo image...'
+ logo = Magick::Image.read('logo:').first
+ logo.crop!(98, 0, 461, 455).resize!(0.45)
+
+ # Create a new Image for the composited montage and logo
+ montage_image = Magick::ImageList.new
+ montage_image << montage.composite(logo, 245, 0, Magick::OverCompositeOp)
+
+ # Write the result to a file
+ montage_image.compression = Magick::RLECompression
+ montage_image.alpha(Magick::DeactivateAlphaChannel)
+ puts 'Writing image ./rm_demo_out.png'
+ montage_image.write 'rm_demo_out.png'
+
+# Uncomment the following lines to display image to screen
+# puts "Displaying image..."
+# montage_image.display
+rescue StandardError
+ puts "Caught exception: #{$ERROR_INFO}"
end
exit