Python Wand composite()用法及代码示例

composite()函数使用COMPOSITE_OPERATORS在绘制对象图像的顶部渲染图像。必须为合成图像指定目标的上，左，宽和高值。

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

参数：

参数	输入类型	描述
image	wand.image.Image	放置在当前图像上的图像
left	numbers.Integral	放置图片的X坐标
top	numbers.Integral	图像放置的y坐标
operator	basestring	影响合成物如何应用到图像的运算符。
arguments	basestring	作为几何字符串或逗号分隔值给出的附加数字。 ‘blend’，‘displace’，‘dissolve’和‘modulate’运算符需要此设置。
gravity	basestring	根据GRAVITY_TYPES的重力值计算上下左右的值。

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’)

输入图像：
图片＃1：

图片2：

范例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)

输出：

范例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)

输出：

相关用法

注：本文由纯净天空筛选整理自RahulSabharwal大神的英文原创作品 Wand composite() function in Python。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。