def blend_image(img1, img2, alpha):
try:
with open_image(img1) as image:
new_img1 = image.im.resize((200, 200))
with open_image(img2) as image:
new_img2 = image.im.resize((200, 200))
blend_img = Image.blend(new_img1, new_img2, alpha)
blend_img.show()
except Exception as e:
print e
def composite_image(img1, img2):
try:
with open_image(img1) as image:
new_img1 = Image.new('L', (200, 200))
with open_image(img2) as image:
new_img2 = image.im.resize((200, 200))
m = new_img2.convert('L')
comp_img = Image.composite(new_img1, new_img2, m)
comp_img.show()
except Exception as e:
print e
def ehance_picture(img):
try:
with open_image(img) as image:
new_img = ImageEnhance.Contrast(image.im)
new_img.enhance(1.8).show("30% more contrast")
except Exception as e:
print e
def create_thumbnail(img, rate=None, resize=None):
status = u'success'
try:
with open_image(img) as image:
new_img = image.im
new_size = new_img.size
width, height = new_size
if resize:
if isinstance(resize, tuple):
new_size = resize
else:
status = u'fail'
return status
elif rate:
if isinstance(rate, (int, float)):
_width = int(width * rate)
_height = int(height * rate)
new_size = _width, _height
else:
status = u'fail'
return status
else:
status = u'fail'
return status
new_img.thumbnail(new_size)
new_img.show()
return status
except Exception as e:
print e
def eval_image(img):
try:
with open_image(img) as image:
new_img = image.im
new_img = Image.eval(new_img, lambda x: x*2)
new_img.show()
except Exception as e:
print e
def rotate_picture(img, angle):
try:
with open_image(img) as image:
new_img = image.im
new_img = new_img.rotate(angle)
new_img.show()
except Exception as e:
print e
def point_operation(img):
try:
with open_image(img) as image:
new_img = image.im
# point(lambda x)
new_img = new_img.point(lambda i: i * 2)
new_img.show()
except Exception as e:
print e
def use_filter(img):
try:
with open_image(img) as image:
new_img = image.im
# 模糊
new_img = new_img.filter(ImageFilter.BLUR)
new_img.show()
except Exception as e:
print e
def transpose_picture(img):
try:
with open_image(img) as image:
new_image = image.im
new_image = new_image.transpose(Image.FLIP_LEFT_RIGHT)
new_image = new_image.transpose(Image.ROTATE_90)
new_image = new_image.transpose(Image.ROTATE_180)
new_image.show()
except Exception as e:
print e
def check_picture_image(img):
try:
with open_image(img) as image:
new_img = image.im
return {
u'mode': new_img.mode,
u'size': new_img.size,
u'format': new_img.format
}
except Exception as e:
print e
def single_channel_operation(img):
try:
with open_image(img) as image:
new_img_channels = image.im.split()
r, g, b = range(3)
red_channel = new_img_channels[r].point(lambda i: i < 100 and 255)
green_channel = new_img_channels[g].point(lambda i: i * 0.7)
green_channel.paste(green_channel, None, red_channel)
new_img = Image.merge(image.im.mode, new_img_channels)
new_img.show()
except Exception as e:
print e
def transition_picture_format(img, img_type):
try:
with open_image(img) as image:
file_name = re.search(u'^\w+', img).group()
file_dir = image.img_file_dir
new_img = image.im
new_img_dir = os.path.join(file_dir,
u'%s.%s' % (file_name, img_type))
new_img.save(new_img_dir)
new_img.show()
except Exception as e:
print e
def convert_trans_pic(img):
try:
with open_image(img) as image:
new_img = image.im
if new_img.mode == 'RGB':
r, g, b = new_img.split()
a = get_main_image(new_img, 20)
a_img = Image.merge('RGBA', (r, g, b, a))
a_img.save('test.png')
else:
print 'not RGB mode'
except Exception as e:
print e
def resize_picture(img, size):
status = u'success'
try:
with open_image(img) as image:
new_img = image.im
if isinstance(size, tuple):
new_img = new_img.resize(size)
else:
status = u'fail'
new_img.show()
print status
except Exception as e:
print e
def operation_picture(img, r_size):
try:
with open_image(img) as image:
new_img = image.im.convert('RGBA')
m_width, m_height = [i // 2 for i in new_img.size]
r_size //= 2
box = (m_width - r_size, m_height - r_size, m_width + r_size,
m_height + r_size)
region = new_img.crop(box)
region = region.transpose(Image.ROTATE_180)
new_img.paste(region, box)
new_img.show()
except Exception as e:
print e
def operation_channel(img):
try:
with open_image(img) as image:
new_img = image.im
if new_img.mode == 'RGB':
r, g, b = new_img.split()
change_image = Image.merge("GRB", (g, b, r))
elif new_img.mode == 'RGBA':
r, g, b, a = new_img.split()
change_image = Image.merge("GRBA", (g, b, r, a))
else:
change_image = new_img
change_image.show()
except Exception as e:
print e