Python Wand composite()用法及代碼示例

composite()函數使用COMPOSITE_OPERATORS在繪製對象圖像的頂部渲染圖像。必須為合成圖像指定目標的上，左，寬和高值。

用法： wand.drawing.composite(image, left, top, operator, arguments, gravity)

參數：

參數	輸入類型	描述
image	wand.image.Image	放置在當前圖像上的圖像
left	numbers.Integral	放置圖片的X坐標
top	numbers.Integral	圖像放置的y坐標
operator	basestring	影響合成物如何應用到圖像的運算符。
arguments	basestring	作為幾何字符串或逗號分隔值給出的附加數字。 ‘blend’，‘displace’，‘dissolve’和‘modulate’運算符需要此設置。
gravity	basestring	根據GRAVITY_TYPES的重力值計算上下左右的值。

以下是COMPOSITE_OPERATORS的列表：

(‘undefined’, ‘alpha’, ‘atop’, ‘blend’, ‘blur’, ‘bumpmap’, ‘change_mask’, ‘clear’, ‘color_burn’, ‘color_dodge’, ‘colorize’, ‘copy_black’, ‘copy_blue’, ‘copy’, ‘copy_cyan’, ‘copy_green’, ‘copy_magenta’, ‘copy_alpha’, ‘copy_red’, ‘copy_yellow’, ‘darken’, ‘darken_intensity’, ‘difference’, ‘displace’, ‘dissolve’, ‘distort’, ‘divide_dst’, ‘divide_src’, ‘dst_atop’, ‘dst’, ‘dst_in’, ‘dst_out’, ‘dst_over’, ‘exclusion’, ‘hard_light’, ‘hard_mix’, ‘hue’, ‘in’, ‘intensity’, ‘lighten’, ‘lighten_intensity’, ‘linear_burn’, ‘linear_dodge’, ‘linear_light’, ‘luminize’, ‘mathematics’, ‘minus_dst’, ‘minus_src’, ‘modulate’, ‘modulus_add’, ‘modulus_subtract’, ‘multiply’, ‘no’, ‘out’, ‘over’, ‘overlay’, ‘pegtop_light’, ‘pin_light’, ‘plus’, ‘replace’, ‘saturate’, ‘screen’, ‘soft_light’, ‘src_atop’, ‘src’, ‘src_in’, ‘src_out’, ‘src_over’, ‘threshold’, ‘vivid_light’, ‘xor’, ‘stereo’)

輸入圖像：
圖片＃1：

圖片2：

範例1：

from wand.image import Image, COMPOSITE_OPERATORS 
from wand.drawing import Drawing 
from wand.display import display 
  
gog = Image(filename ='gog.png') 
road = Image(filename ='rd.jpg') 
  
g = gog.clone() 
r = road.clone() 
with Drawing() as draw:
    # composite image with color_burn operator 
    draw.composite(operator ='color_burn', left = 20, top = 30, 
                   width = r.width, height = r.height, image = r) 
    draw(g) 
    g.save(filename ="colorburn.png") 
    display(g)

輸出：

範例1：

from wand.image import Image, COMPOSITE_OPERATORS 
from wand.drawing import Drawing 
from wand.display import display 
  
gog = Image(filename ='gog.png') 
road = Image(filename ='rd.jpg') 
  
g = gog.clone() 
r = road.clone() 
with Drawing() as draw:
    # composite image with dissolve operator 
    draw.composite(operator = 'luminize', left = 20, top = 30, 
                   width = g.width, height = g.height, image = g) 
    draw(r) 
    r.save(filename ="dissolve.png") 
    display(r)

輸出：

相關用法

注：本文由純淨天空篩選整理自RahulSabharwal大神的英文原創作品 Wand composite() function in Python。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。