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pyueye_example_utils.py
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#!/usr/bin/env python
#------------------------------------------------------------------------------
# PyuEye example - utilities modul
#
# Copyright (c) 2017 by IDS Imaging Development Systems GmbH.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# 3. Neither the name of the copyright holder nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#------------------------------------------------------------------------------
from pyueye import ueye
from threading import Thread
from ctypes import byref
def get_bits_per_pixel(color_mode):
"""
returns the number of bits per pixel for the given color mode
raises exception if color mode is not is not in dict
"""
return {
ueye.IS_CM_SENSOR_RAW8: 8,
ueye.IS_CM_SENSOR_RAW10: 16,
ueye.IS_CM_SENSOR_RAW12: 16,
ueye.IS_CM_SENSOR_RAW16: 16,
ueye.IS_CM_MONO8: 8,
ueye.IS_CM_RGB8_PACKED: 24,
ueye.IS_CM_BGR8_PACKED: 24,
ueye.IS_CM_RGBA8_PACKED: 32,
ueye.IS_CM_BGRA8_PACKED: 32,
ueye.IS_CM_BGR10_PACKED: 32,
ueye.IS_CM_RGB10_PACKED: 32,
ueye.IS_CM_BGRA12_UNPACKED: 64,
ueye.IS_CM_BGR12_UNPACKED: 48,
ueye.IS_CM_BGRY8_PACKED: 32,
ueye.IS_CM_BGR565_PACKED: 16,
ueye.IS_CM_BGR5_PACKED: 16,
ueye.IS_CM_UYVY_PACKED: 16,
ueye.IS_CM_UYVY_MONO_PACKED: 16,
ueye.IS_CM_UYVY_BAYER_PACKED: 16,
ueye.IS_CM_CBYCRY_PACKED: 16,
} [color_mode]
class uEyeException(Exception):
def __init__(self, error_code):
self.error_code = error_code
def __str__(self):
return "Err: " + str(self.error_code)
def check(ret):
if ret != ueye.IS_SUCCESS:
raise uEyeException(ret)
class ImageBuffer:
def __init__(self):
self.mem_ptr = ueye.c_mem_p()
self.mem_id = ueye.int()
class MemoryInfo:
def __init__(self, h_cam, img_buff):
self.x = ueye.int()
self.y = ueye.int()
self.bits = ueye.int()
self.pitch = ueye.int()
self.img_buff = img_buff
rect_aoi = ueye.IS_RECT()
check(ueye.is_AOI(h_cam,
ueye.IS_AOI_IMAGE_GET_AOI, rect_aoi, ueye.sizeof(rect_aoi)))
self.width = rect_aoi.s32Width.value
self.height = rect_aoi.s32Height.value
check(ueye.is_InquireImageMem(h_cam,
self.img_buff.mem_ptr,
self.img_buff.mem_id, self.x, self.y, self.bits, self.pitch))
class ImageData:
def __init__(self, h_cam, img_buff):
self.h_cam = h_cam
self.img_buff = img_buff
self.mem_info = MemoryInfo(h_cam, img_buff)
self.color_mode = ueye.is_SetColorMode(h_cam, ueye.IS_GET_COLOR_MODE)
self.bits_per_pixel = get_bits_per_pixel(self.color_mode)
self.array = ueye.get_data(self.img_buff.mem_ptr,
self.mem_info.width,
self.mem_info.height,
self.mem_info.bits,
self.mem_info.pitch,
True)
def as_1d_image(self):
channels = int((7 + self.bits_per_pixel) / 8)
import numpy
if channels > 1:
return numpy.reshape(self.array, (self.mem_info.height, self.mem_info.width, channels))
else:
return numpy.reshape(self.array, (self.mem_info.height, self.mem_info.width))
def unlock(self):
check(ueye.is_UnlockSeqBuf(self.h_cam, self.img_buff.mem_id, self.img_buff.mem_ptr))
class Rect:
def __init__(self, x=0, y=0, width=0, height=0):
self.x = x
self.y = y
self.width = width
self.height = height
class FrameThread(Thread):
def __init__(self, cam, views=None, copy=True):
super(FrameThread, self).__init__()
self.timeout = 1000
self.cam = cam
self.running = True
self.views = views
self.copy = copy
def run(self):
while self.running:
img_buffer = ImageBuffer()
ret = ueye.is_WaitForNextImage(self.cam.handle(),
self.timeout,
img_buffer.mem_ptr,
img_buffer.mem_id)
if ret == ueye.IS_SUCCESS:
self.notify(ImageData(self.cam.handle(), img_buffer))
#break
def notify(self, image_data):
if self.views:
if type(self.views) is not list:
self.views = [self.views]
for view in self.views:
view.handle(image_data)
def stop(self):
self.cam.stop_video()
self.running = False