def get_image_size(file_in, gm_or_im):
"""
identify width and height of picture
input: file name
output: width and height
"""
width = 1
height = 1
size = ""
file_info = common.spacja(os.path.join(tempfile.gettempdir(),
"fotokilof_" + os.getlogin() \
+ "_image_info"))
command = ' -format "%w\\n%h\\n%b" '
command = command + common.spacja(file_in) + ' > '
result = magick(command, "", file_info, gm_or_im + "identify")
if result is not None:
try:
file = open(file_info, "r")
except:
log.write_log("get_image_size: cannot read file_info", "W")
else:
width = int(file.readline())
height = int(file.readline())
size = file.readline()
file.close()
try:
os.remove(file_info)
except:
log.write_log("get_image_size: cannot remove image_info", "W")
return (width, height, size)
def magick(cmd, file_in, file_out, command):
"""
run imagemagick command.
cmd - command for imagemagick
file_in - fullname picture for processing
file_out - fullname output picture
command:
convert, mogrify, composite, import - ImageMagick
gm convert, gm mogrify, gm composite, gm import - GraphicsMagick
"""
result = None
if cmd != "":
if file_in is not None:
file_in = common.spacja(file_in)
file_out = common.spacja(file_out)
command = magick_command(command)
command = command + " " + file_in + " " + cmd + file_out
log.write_log("Execute: " + command, "M")
try:
os.system(command)
except:
log.write_log("Errot in imagick: " + command, "E")
result = None
else:
result = "OK"
else:
log.write_log("imagick: No file for imagick", "W")
result = None
else:
result = None
return result
def get_magick_version(gm_or_im):
""" get version of *Magick """
version = ""
if gm_or_im is None:
gm_or_im = ""
file_version = common.spacja(os.path.join(tempfile.gettempdir(),
"fotokilof_" + \
os.getlogin() + "_version"))
command = "-Version > "
result = magick(command, "", common.spacja(file_version),
gm_or_im + "convert")
if result is not None:
try:
file = open(file_version, "r")
except:
log.write_log("get_magick_version: cannot read file_version", "W")
else:
version_object = re.search("\\d+[.]\\d+([.]\\d+)*", file.readline())
if version_object is not None:
version = version_object[0]
file.close()
try:
os.remove(file_version)
except:
log.write_log("get_magick_version: cannot remove file_version", "W")
return version
def preview_convert(file, dir_temp, command, size):
"""
preview generation
file - fullname image file
dir_temp - fullname temporary directory
command - additional command for imagemagick or space
--
return: fullname preview file and size
"""
img = Image.open(file)
width = str(img.size[0])
height = str(img.size[1])
file_preview = os.path.join(dir_temp, "preview.ppm")
file = common.spacja(file)
file_preview = common.spacja(file_preview)
if platform.system() == "Windows":
suffix = ".exe "
else:
suffix = " "
command = "convert" + suffix + file + " -resize " + str(size) + "x" + str(size) + command + file_preview
print(command)
try:
os.system(command)
except:
print("! Error in convert_preview: " + command)
try:
return {'filename': file_preview, 'width': width, 'height': height}
except:
print("! Error in convert_preview: return")
return None
def imagick(cmd, file_out, command):
"""
run imagemagick command.
cmd - command for imagemagick
file_out - fullname picture for processing
command: convert, mogrify, composite - imagemagick tools
"""
result = None
if cmd != "":
if file_out is not None:
if os.path.isfile(file_out):
file_out = common.spacja(file_out)
if platform.system() == "Windows":
suffix = ".exe "
else:
suffix = " "
command = command + suffix + cmd + " " + file_out
print(command)
try:
os.system(command)
except:
print("! Error in imagick: " + command)
result = None
else:
result = "OK"
else:
print("No file for processing")
else:
print("No file for imagick")
result = None
else:
result = None
return result
def preview_histogram(file, dir_temp):
"""
histogram generation
file - fullname image file
dir_temp - fullname temporary directory
--
return: fullname of histogram
"""
file_histogram = common.spacja(os.path.join(dir_temp, "histogram.png"))
file = common.spacja(file)
if platform.system() == "Windows":
suffix = ".exe "
else:
suffix = " "
command = "convert" + suffix + file + " -colorspace Gray -define histogram:unique-colors=false histogram:" + file_histogram
try:
os.system(command)
return file_histogram
except:
print("! Error in convert_histogram: " + command)
def display_image(file_in, gm_or_im):
""" display image """
file_in = common.spacja(file_in)
if mswindows.windows() == 1:
display = 'explorer' # this is the best idea for Windows
ampersand = ''
else:
display = gm_or_im + "display"
ampersand = ' &'
command = magick_command(display)
command = command + " " + file_in + ampersand
log.write_log("Execute: " + command, "M")
try:
os.system(command)
except:
log.write_log(" Error in imagick: " + command, "E")
result = None
else:
result = "OK"
return result