Funny you should ask, I've been poking at this for a couple of days. I've written a Python program which uses PyUSB to capture calibration and Image Frames from the Seek Imager.
# You will need to have python 2.7 (3+ may work)
# and PyUSB 1.0
# and PIL 1.1.6 or better
# and numpy
# and scipy
# and ImageMagick
# Many thanks to the folks at eevblog, especially (in no particular order)
# miguelvp, marshallh, mikeselectricstuff, sgstair and many others
# for the inspiration to figure this out
# This is not a finished product and you can use it if you like. Don't be
# surprised if there are bugs as I am NOT a programmer..... ;>))
import usb.core
import usb.util
import sys
import Image
import numpy
from scipy.misc import toimage
# find our Seek Thermal device 289d:0010
dev = usb.core.find(idVendor=0x289d, idProduct=0x0010)
# was it found?
if dev is None:
raise ValueError('Device not found')
# set the active configuration. With no arguments, the first
# configuration will be the active one
dev.set_configuration()
# get an endpoint instance
cfg = dev.get_active_configuration()
intf = cfg[(0,0)]
ep = usb.util.find_descriptor(
intf,
# match the first OUT endpoint
custom_match = \
lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == \
usb.util.ENDPOINT_OUT)
assert ep is not None
# Deinit the device
msg= '\x00\x00'
assert dev.ctrl_transfer(0x41, 0x3C, 0, 0, msg) == len(msg)
assert dev.ctrl_transfer(0x41, 0x3C, 0, 0, msg) == len(msg)
assert dev.ctrl_transfer(0x41, 0x3C, 0, 0, msg) == len(msg)
# Setup device
#msg = x01
assert dev.ctrl_transfer(0x41, 0x54, 0, 0, 0x01)
# Some day we will figure out what all this init stuff is and
# what the returned values mean.
msg = '\x00\x00'
assert dev.ctrl_transfer(0x41, 0x3C, 0, 0, msg) == len(msg)
ret1 = dev.ctrl_transfer(0xC1, 0x4E, 0, 0, 4)
ret2 = dev.ctrl_transfer(0xC1, 0x36, 0, 0, 12)
#print ret1
#print ret2
#
msg = '\x20\x00\x30\x00\x00\x00'
assert dev.ctrl_transfer(0x41, 0x56, 0, 0, msg) == len(msg)
ret3 = dev.ctrl_transfer(0xC1, 0x58, 0, 0, 0x40)
#print ret3
#
msg = '\x20\x00\x50\x00\x00\x00'
assert dev.ctrl_transfer(0x41, 0x56, 0, 0, msg) == len(msg)
ret4 = dev.ctrl_transfer(0xC1, 0x58, 0, 0, 0x40)
#print ret4
#
msg = '\x0C\x00\x70\x00\x00\x00'
assert dev.ctrl_transfer(0x41, 0x56, 0, 0, msg) == len(msg)
ret5 = dev.ctrl_transfer(0xC1, 0x58, 0, 0, 0x18)
#print ret5
#
msg = '\x06\x00\x08\x00\x00\x00'
assert dev.ctrl_transfer(0x41, 0x56, 0, 0, msg) == len(msg)
ret6 = dev.ctrl_transfer(0xC1, 0x58, 0, 0, 0x0C)
#print ret6
#
msg = '\x08\x00'
assert dev.ctrl_transfer(0x41, 0x3E, 0, 0, msg) == len(msg)
ret7 = dev.ctrl_transfer(0xC1, 0x3D, 0, 0, 2)
#print ret7
#
msg = '\x08\x00'
assert dev.ctrl_transfer(0x41, 0x3E, 0, 0, msg) == len(msg)
msg = '\x01\x00'
assert dev.ctrl_transfer(0x41, 0x3C, 0, 0, msg) == len(msg)
ret8 = dev.ctrl_transfer(0xC1, 0x3D, 0, 0, 2)
#print ret8
#
x=0
while x < 5:
# Send read frame request
msg = '\xC0\x7E\x00\x00'
assert dev.ctrl_transfer(0x41, 0x53, 0, 0, msg) == len(msg)
ret9 = dev.read(0x81, 0x3F60, 1000)
ret9 += dev.read(0x81, 0x3F60, 1000)
ret9 += dev.read(0x81, 0x3F60, 1000)
ret9 += dev.read(0x81, 0x3F60, 1000)
# Let's see what type of frame it is
# 1 is a Normal frame, 3 is a Calibration frame
# 6 may be a pre-calibration frame
# 5, 10 other... who knows.
status = ret9[20]
if status == 1:
# Convert the raw calibration data to a string array
calimg = Image.fromstring("I", (208,156), ret9, "raw", "I;16")
# Convert the string array to an unsigned numpy int16 array
im2arr = numpy.asarray(calimg)
im2arrF = im2arr.astype('uint16')
if status == 3:
# Convert the raw calibration data to a string array
img = Image.fromstring("I", (208,156), ret9, "raw", "I;16")
# Convert the string array to an unsigned numpy int16 array
im1arr = numpy.asarray(img)
im1arrF = im1arr.astype('uint16')
# Subtract the calibration array from the image array and add an offset
additionF = (im1arrF-im2arrF)+ 800
# convert to an image and display with imagemagick
toimage(additionF).show()
x = x + 1
Many thanks to the folks at eevblog, especially (in no particular order)
miguelvp, marshallh, mikeselectricstuff, sgstair and many others
for the inspiration to figure this out
This is not a finished product and you can use it if you like. Don't be
surprised if there are bugs as I am NOT a programmer..... ;>))
This works for me since my Samsung S4 Mini doesn't work with the Seek App, and while a friend's Nexus 7 (2013) works ok, my Nexus 7 (2012) does not.
This is my first Python program, and there may be lots left to do to make it more useful, but it works on my Ubuntu 14.04 box.
The attached images were saved from ImageMagick, the second after doubling the size and doing a "reduce noise" with radius of 3
...ken...
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