class Pluto::RGBAImage
- Pluto::RGBAImage
- Pluto::Image
- Reference
- Object
Included Modules
- Pluto::Format::JPEG
- Pluto::Format::PNG
- Pluto::Format::PPM
- Pluto::Format::WebP
- Pluto::Operation::BilinearResize
- Pluto::Operation::BoxBlur
- Pluto::Operation::Brightness
- Pluto::Operation::ChannelSwap
- Pluto::Operation::Contrast
- Pluto::Operation::Crop
- Pluto::Operation::GaussianBlur
- Pluto::Operation::HorizontalBlur
- Pluto::Operation::VerticalBlur
Defined in:
pluto/rgba_image.crConstructors
-
.from_jpeg(image_data : Bytes) : self
This is the preferred, most performant JPEG overload with the least memory consumption.
-
.from_jpeg(io : IO) : self
This is a less preferred JPEG overload.
-
.from_png(image_data : Bytes) : self
This is the preferred, most performant PNG overload with the least memory consumption.
-
.from_png(io : IO) : self
This is a less preferred PNG overload.
- .from_ppm(image_data : Bytes) : self
- .from_ppm(io : IO) : self
-
.from_webp(image_data : Bytes) : self
This is the preferred, most performant WebP overload with the least memory consumption.
-
.from_webp(io : IO) : self
This is a less preferred WebP overload.
- .new(red : Array(UInt8), green : Array(UInt8), blue : Array(UInt8), alpha : Array(UInt8), width : Int32, height : Int32)
Instance Method Summary
- #[](channel_type : ChannelType) : Array(UInt8)
- #[]=(channel_type : ChannelType, channel : Array(UInt8)) : Array(UInt8)
- #alpha : Array(UInt8)
- #alpha=(alpha : Array(UInt8))
- #blue : Array(UInt8)
- #blue=(blue : Array(UInt8))
- #clone : RGBAImage
- #each_channel(&) : Nil
- #green : Array(UInt8)
- #green=(green : Array(UInt8))
- #height : Int32
- #height=(height : Int32)
- #red : Array(UInt8)
- #red=(red : Array(UInt8))
- #size : Int32
-
#to_gray(red_multiplier : Float = 0.299, green_multiplier : Float = 0.587, blue_multiplier : Float = 0.114) : GrayscaleImage
Convert color image to grayscale one, using the NTSC formula as default values.
- #width : Int32
- #width=(width : Int32)
Instance methods inherited from module Pluto::Operation::Crop
crop(x : Int32, y : Int32, new_width : Int32, new_height : Int32) : self
crop,
crop!(x : Int32, y : Int32, new_width : Int32, new_height : Int32) : self
crop!
Instance methods inherited from module Pluto::Operation::VerticalBlur
vertical_blur(value : Int32) : self
vertical_blur,
vertical_blur!(value : Int32) : self
vertical_blur!
Instance methods inherited from module Pluto::Operation::HorizontalBlur
horizontal_blur(value : Int32) : self
horizontal_blur,
horizontal_blur!(value : Int32) : self
horizontal_blur!
Instance methods inherited from module Pluto::Operation::GaussianBlur
gaussian_blur(value : Int32) : self
gaussian_blur,
gaussian_blur!(value : Int32) : self
gaussian_blur!
Instance methods inherited from module Pluto::Operation::Contrast
contrast(value : Float64) : self
contrast,
contrast!(value : Float64) : self
contrast!
Instance methods inherited from module Pluto::Operation::ChannelSwap
channel_swap(a : ChannelType, b : ChannelType) : self
channel_swap,
channel_swap!(a : ChannelType, b : ChannelType) : self
channel_swap!
Instance methods inherited from module Pluto::Operation::Brightness
brightness(value : Float64) : self
brightness,
brightness!(value : Float64) : self
brightness!
Instance methods inherited from module Pluto::Operation::BoxBlur
box_blur(value : Int32) : self
box_blur,
box_blur!(value : Int32) : self
box_blur!
Instance methods inherited from module Pluto::Operation::BilinearResize
bilinear_resize(width : Int32, height : Int32) : self
bilinear_resize,
bilinear_resize!(width : Int32, height : Int32) : self
bilinear_resize!
Instance methods inherited from module Pluto::Format::WebP
check_webp(*args, **options)check_webp(*args, **options, &) check_webp, to_webp(io : IO) : Nil to_webp
Instance methods inherited from module Pluto::Format::PPM
to_ppm(io : IO) : Nil
to_ppm
Instance methods inherited from module Pluto::Format::PNG
check_png(*args, **options)check_png(*args, **options, &) check_png, to_png(io : IO) : Nil to_png
Instance methods inherited from module Pluto::Format::JPEG
check_jpeg(*args, **options)check_jpeg(*args, **options, &) check_jpeg, to_jpeg(io : IO, quality : Int32 = 100) : Nil to_jpeg
Instance methods inherited from class Pluto::Image
[](channel_type : ChannelType) : Array(UInt8)
[],
[]=(channel_type : ChannelType, channel : Array(UInt8)) : Array(UInt8)
[]=,
alpha : Array(UInt8)
alpha,
blue : Array(UInt8)
blue,
each_channel(& : Array(UInt8), ChannelType -> Nil) : Nil
each_channel,
green : Array(UInt8)
green,
height : Int32
height,
red : Array(UInt8)
red,
size : Int32
size,
width : Int32
width
Constructor Detail
def self.from_jpeg(image_data : Bytes) : self
#
This is the preferred, most performant JPEG overload with the least memory consumption.
def self.from_png(image_data : Bytes) : self
#
This is the preferred, most performant PNG overload with the least memory consumption.
def self.from_webp(image_data : Bytes) : self
#
This is the preferred, most performant WebP overload with the least memory consumption.
def self.new(red : Array(UInt8), green : Array(UInt8), blue : Array(UInt8), alpha : Array(UInt8), width : Int32, height : Int32)
#
Instance Method Detail
def to_gray(red_multiplier : Float = 0.299, green_multiplier : Float = 0.587, blue_multiplier : Float = 0.114) : GrayscaleImage
#
Convert color image to grayscale one, using the NTSC formula as default values.