Python3.4 PIL的使用

from PIL import Image, ImageFilter, ImageDraw, ImageFont, ImageEnhance, ImageFilter

image1 = Image.open('C:/Users/hengli/Desktop/1.jpg')

image2 = Image.open('C:/Users/hengli/Desktop/2.jpg')

def 图片大小(image):

   w, h = image.size      #获得图片的大小（分辨率）

   return w, h

def 图片剪裁(image, p1, p2, p3, p4):

    box = (p1, p2, p3, p4)

    image = image.crop(box)

    image.show()

    return image

def 图片压缩(image, size1, size2):

    image.thumbnail((size1, size2), Image.ANTIALIAS)

    image.show()

    return image

def 图片旋转(image, jiaodu):

    image = image.rotate(jiaodu)

    image.show()

    return image

def 图片黑白转换1(image):

    image = image.convert('L')   #(8-bit pixels, black and white)

    image.show()

    return image

def 图片过滤(image):

    image.filter(ImageFilter.DETAIL)

def 图片写字(image, p1, p2, text):

    draw = ImageDraw.Draw(image)

    draw.text((p1, p2), text)

    image.show()
w, h = image1.size
图片写字(image1, w-100, h-20, 'hello')
def 图片拼接(image1, image2):

    images = (image1, image2)

    w, h = image1.size

    target = Image.new('RGB', (w*2, h))

    left = 0

    right = w

    for image in images:

        temp = image.resize((w, h), Image.ANTIALIAS)

        target.paste(temp, (left, 0, right, h))

        left += w

        right += w

    target.show()
图片拼接(image1, image2)
def 图片黑白转换2(image):

    image = image.convert('1')   #(1-bit pixels, black and white, stored with one pixel per byte)

    image.show()

    return image

def 图片虚化(image):

    image = image.convert('P')   #(8-bit pixels, mapped to any other mode using a colour palette)

    image.show()

    return image

def 图片转换怀旧(image):

    image = image.convert('LA')

    image.show()

    return image

def 图片锐化(image, qiangdu):

    enhancer = ImageEnhance.Sharpness(image)

    enhancer.enhance(qiangdu).show()

def 图片色彩增强(image, qiangdu):

    enhancer = ImageEnhance.Color(image)

    enhancer.enhance(qiangdu).show()

def 图片亮度增强(image, qiangdu):

    enhancer = ImageEnhance.Brightness(image)

    enhancer.enhance(qiangdu).show()

def 图片对比度增强(image, qiangdu):

    enhancer = ImageEnhance.Contrast(image)

    enhancer.enhance(qiangdu).show()

def 图片BlUR(image):

    image = image.filter(ImageFilter.BLUR)

    image.show()

def 图片MinFilter(image):

    image = image.filter(ImageFilter.MinFilter)

    image.show()

def 图片转换黑白线条(image):

    image = image.filter(ImageFilter.CONTOUR)

    image.show()

def 图片EMBOSS(image):

    image = image.filter(ImageFilter.EMBOSS)

    image.show()

def 图片FIND_EDGES(image):

    image = image.filter(ImageFilter.FIND_EDGES)

    image.show()  </pre>