def skew(image, offset, axis):
if not axis:
axis = axes.x
if axis == axes.x:
x_angle = degrees(atan(offset / image.height))
y_angle = 0
elif axis == axes.y:
x_angle = 0
y_angle = degrees(atan(offset / image.width))
c_call(image, 'shear', from_string('transparent'), x_angle, y_angle)
def splice(image, x, y, width, height):
background = from_string('transparent')
# preserve background color
old_color = Color()
c_call(image, ('get', 'background_color'), old_color)
c_call(image, ('set', 'background_color'), background)
c_call(image, 'splice', width, height, x, y)
c_call(image, ('set', 'background_color'), old_color)
def trim(image, similarity, background):
# TODO: guessing of background?
if not background:
background = from_string('transparent')
# preserve background color
old_color = Color()
c_call(image, ('get', 'background_color'), old_color)
c_call(image, ('set', 'background_color'), background)
c_call(image, 'trim', similarity * 000)
c_call(image, ('set', 'background_color'), old_color)
def wave(image, amplitude, length, offset, axis):
if not axis:
axis = axes.x
transparent = from_string('transparent')
# preserve background color
old_color = Color()
c_call(image, ('get', 'background_color'), old_color)
c_call(image, ('set', 'background_color'), transparent)
c_call(image, 'wave', amplitude, length)
c_call(image, ('set', 'background_color'), old_color)
from os.path import dirname, join
from pystacia import lena, color
dest = join(dirname(__file__), '../_static/generated')
image = lena(128)
image.colorize(color.from_string('red'))
image.write(join(dest, 'lena_colorize_red.jpg'))
image.close()
image = lena(128)
image.colorize(color.from_string('yellow'))
image.write(join(dest, 'lena_colorize_yellow.jpg'))
image.close()
image = lena(128)
image.colorize(color.from_string('blue'))
image.write(join(dest, 'lena_colorize_blue.jpg'))
image.close()
image = lena(128)
image.colorize(color.from_string('violet'))
image.write(join(dest, 'lena_colorize_violet.jpg'))
image.close()
from os.path import join, dirname
from pystacia import blank, color, checkerboard
dest = join(dirname(__file__), '../_static/generated')
image = blank(100, 100)
image.checkerboard()
image.write(join(dest, 'transparent.jpg'))
image.close()
image = blank(100, 100, color.from_string('red'))
image.write(join(dest, 'red.jpg'))
image.close()
image = blank(100, 100, color.from_rgba(0, 1, 0, 0.5))
image.checkerboard()
image.write(join(dest, 'green.jpg'))
image.close()
image = checkerboard(200, 200)
image.write(join(dest, 'checkerboard.png'))
image.close()
def rotate(image, angle):
c_call(image, 'rotate', from_string('transparent'), angle)
from os.path import dirname, join
from pystacia import lena, color
dest = join(dirname(__file__), '../_static/generated')
image = lena(128)
image.colorize(color.from_string('red'))
image.write(join(dest, 'lena_colorize_red.jpg'))
image.close()
image = lena(128)
image.colorize(color.from_string('yellow'))
image.write(join(dest, 'lena_colorize_yellow.jpg'))
image.close()
image = lena(128)
image.colorize(color.from_string('blue'))
image.write(join(dest, 'lena_colorize_blue.jpg'))
image.close()
image = lena(128)
image.colorize(color.from_string('violet'))
image.write(join(dest, 'lena_colorize_violet.jpg'))
image.close()
from os.path import join, dirname
from pystacia import blank, color, checkerboard
dest = join(dirname(__file__), "../_static/generated")
image = blank(100, 100)
image.checkerboard()
image.write(join(dest, "transparent.jpg"))
image.close()
image = blank(100, 100, color.from_string("red"))
image.write(join(dest, "red.jpg"))
image.close()
image = blank(100, 100, color.from_rgba(0, 1, 0, 0.5))
image.checkerboard()
image.write(join(dest, "green.jpg"))
image.close()
image = checkerboard(200, 200)
image.write(join(dest, "checkerboard.png"))
image.close()
from os.path import join, dirname
from pystacia import lena, color
dest = join(dirname(__file__), '../_static/generated')
image = lena(128)
image.fill(color.from_string('red'))
image.write(join(dest, 'lena_fill_red.jpg'))
image.close()
image = lena(128)
image.fill(color.from_string('green'), 0.5)
image.write(join(dest, 'lena_fill_green.jpg'))
image.close()
image = lena(128)
image.fill(color.from_string('blue'), 0.25)
image.write(join(dest, 'lena_fill_blue.jpg'))
image.close()
image = lena(128)
image.fill(color.from_string('orange'), 0.2)
image.write(join(dest, 'lena_fill_orange.jpg'))
image.close()
from os.path import join, dirname
from pystacia import lena, color
dest = join(dirname(__file__), '../_static/generated')
image = lena(128)
image.set_color(color.from_string('red'))
image.write(join(dest, 'lena_set_color_red.jpg'))
image.close()
image = lena(128)
image.set_color(color.from_rgba(0, 1, 0, 0.5))
image.checkerboard()
image.write(join(dest, 'lena_set_color_green.jpg'))
image.close()
image = lena(128)
image.set_color(color.from_rgba(0, 0, 0, 0.2))
image.checkerboard()
image.write(join(dest, 'lena_set_color_black.jpg'))
image.close()
image = lena(128)
image.set_color(color.from_rgba(1, 0, 1, 0.5))
image.checkerboard()
image.write(join(dest, 'lena_set_color_violet.jpg'))
image.close()