Commit Graph

87 Commits

Author SHA1 Message Date
Kwabena W. Agyeman
f314ac4e72 Improve sensor module with transpose and get operations 2020-02-11 20:59:36 -08:00
Kwabena W. Agyeman
0cdd3e57ac Add initial full support for the OV5640
* Need to increase sensor output speed
* Need to add exposure control code
2020-01-04 17:48:55 -08:00
Kwabena W. Agyeman
7ad61b725e Adds hint system to fb_alloc
With this commit fb_alloc now takes hints to better decide which ram to
give (internal or sdram).

Only fb_alloc_all calls are given any hints right now as some of the
calls need as much ram as possible and will cause failures to happen if
a small amount of fast internal sram is returned.

Anyway, hints can be used to tune where things are placed by fb_alloc.
2019-10-04 21:47:54 -07:00
iabdalkader
54b8132949 License update. 2019-09-05 22:17:50 +02:00
Kwabena W. Agyeman
5e0cca6c3c Update the OV2640 driver.
* Images are right side up now.
* Picture quality is acceptable (not as good as the OV7725)
* All auto functions work now (the OV2640 ignores exposure control
however)
* Added XGA frame size.
* JPEG mode is enabled but needs work still (not sure if the H7 hardware
can capture the packet stream fast enough not to drop bytes).
2019-07-20 23:30:08 -07:00
Kwabena W. Agyeman
c982617523 Fix exceptions from freeing fb_alloc_mark
This fix creates a flag that prevents fb_alloc_free_till_mark() from
doing anything unless there was a previous fb_alloc_mark(). Once
fb_alloc_free_till_mark() is called it will no longer do anything until
there's another fb_alloc_mark().

This means that if an exception is triggered while in code that
previously did fb_alloc_mark() the stack will be cleaned up.

If the fb_alloc_mark() method is not called then the stack will not be
cleaned up and that memory fb_alloc()'ed will remain until a soft reset.

All OpenMV Cam library code is designed to fb_alloc_mark() before using
the fb stack and then fb_alloc_free_till_mark() when complete. However,
in the case of py_sensor_alloc_extra_fb() it doesn't mark first such
that the RAM it allocates stays across exceptions and is only free'd via
py_sensor_dealloc_extra_fb() or via a soft reset.

...

Summary of changes:

fb_alloc.c -> Added a semaphore lock to prevent
fb_alloc_free_till_mark() from doing anything unless fb_alloc_mark() was
called first.

py_sensor.c -> Removed calling fb_alloc_mark() and
fb_alloc_free_till_mark() and re-arranged code calls to prevent a trival
leak sitatuion on heap exhaustion.

py_image.c, py_fir.c, py_lcd.c py_tv.c -> Added fb_alloc_mark() and
fb_alloc_free_till_mark() to methods originally coded without using it.

...

Note - I coded the mark semaphore lock in such a way things work even if
fb_alloc_mark() and fb_alloc_free_till_mark() calls are nested. This
allows the find_blobs() call-back methods to call py_image.c methods
still and also allows us to add more call-backs in the future without
worry if we need to.

...

Finally, if you have an exception in an interrupt handler all this above
breaks terribly. Given MP already breaks if you try to allocate memory
in an exception this is a "won't fix problem". Don't call code that can
have exceptions or needs memory in an interrupt handler.
2019-03-17 19:20:09 -04:00
Kwabena W. Agyeman
cb1e44abb1 Fix missing break and parens. 2019-03-11 19:41:35 +02:00
Kwabena W. Agyeman
c317226738 Set should return none. 2019-03-11 19:41:26 +02:00
Kwabena W. Agyeman
af289d779f Fixed bugged set/get attribute. 2019-03-11 19:41:17 +02:00
Kwabena W. Agyeman
960e61aba9 Fix temperature equation. 2019-03-11 19:32:17 +02:00
Kwabena W. Agyeman
a3f197e12d Add method to get the color palette. 2019-03-11 19:07:13 +02:00
Kwabena W. Agyeman
92cc75eff5 Add the ability to set the flir into measurment mode
Measurement mode allows you to set a target temperature for the FLIR
lepton so that you can actually use it to measure object temperatures
and do useful things. We try to make the mode work on non-radiometric
FLIR letpons howeever it will not be accurate.
2019-03-11 18:20:31 +02:00
Kwabena W. Agyeman
860a8b280d Add ioctl to get lepton radiometry. 2019-03-11 17:54:23 +02:00
Kwabena W. Agyeman
76af3bd534 Add ioctl to get the lepton module width and height. 2019-03-11 17:09:49 +02:00
iabdalkader
4e0a408055 Add FLIR Lepton IOCTLs 2019-03-05 21:11:52 +02:00
iabdalkader
164f2e71c1 Add set_color_palette 2019-03-05 18:21:53 +02:00
iabdalkader
54e431adb2 Implement MT triggered mode using ioctls 2019-03-04 20:55:17 +02:00
iabdalkader
aafc6e995a Add sensor ioctl function. 2019-03-04 19:52:11 +02:00
Kwabena W. Agyeman
3c49f986e4 Enable setting the sensor to a triggered mode. 2019-03-03 00:48:12 -05:00
iabdalkader
b0442633ef Check return value from set_framesize. 2019-03-01 21:17:58 +02:00
Kwabena W. Agyeman
b230de3b42 Add binary format to sensor.
* This format is for use in the Image Lib module since sensor is where
we put the image types.

Will work on the lepton and global shutter drivers next.
2019-02-20 01:59:47 -05:00
Kwabena W. Agyeman
f9e6b3fe01 Remove unsupported types. 2019-02-02 23:21:05 -05:00
iabdalkader
0f1fce6b31 Add streaming support to snapshot function. 2018-10-01 03:08:26 +02:00
iabdalkader
681cef11eb Add pysensor shutdown function. 2018-09-05 17:15:53 +02:00
Kwabena W. Agyeman
7d16d008f9 Update error handling code for sensor.reset() and sensor.sleep(). 2018-05-30 19:07:12 +02:00
Kwabena W. Agyeman
ba47e84ec1 Add higher resolutions. 2018-05-29 16:46:26 +02:00
iabdalkader
f7e691e390 Remove line_filter function. 2018-04-27 02:01:23 +02:00
iabdalkader
6c208b52c9 Sensor: Check window size. 2018-04-26 01:03:32 +02:00
Kwabena W. Agyeman
167daa3538 Add LEPTON Module ID Support 2018-04-25 14:59:39 +02:00
iabdalkader
e006e9b249 Allow sensors to override the default snapshot function. 2018-04-25 04:02:50 +02:00
Kwabena W. Agyeman
e0e112468e Argument Parsing Done Correctly
All of our argument parsing code has now been updated to handle
positional as well as keyword arguments in our python libraries.

Basically, python allows you to pass some number of positional arguments
to functions/methods followed by keyword arguments (you cannot have more
positional arguments after keyword arguments). Previously, our code
would only look for keyword arguments. Now, it works better and will
grab as many positional arguments as it can followed by processing
keyword arguments. Note: If the case of a positional argument value for
a parameter being passed followed by a keyword for that same parameter
the keyword value is taken (since it comes aftward).

Because arguments were passed in keyword form before this update has no
affect on current code. However, moving forward, argument positions are
now locked and cannot be moved around.
2018-03-05 00:49:36 -05:00
Kwabena W. Agyeman
7516d7699f Add Advanced Optical Flow scripts
Someone asked me about doing a field of receptors before. These scripts
show how to do that. Also, added example scripts for calling the linear
polar and log polar methods added previously which power
find_rotscale().
2018-01-08 00:10:55 -05:00
Kwabena W. Agyeman
213396d090 Complete Overhaul of phasecorrelation
Just doing one big commit/PR here since I noticed that breaking it up
causes issues.

Anyway, these fixes give us GOOD/WORKING/FAST optical flow now on the
OpenMV Cam M7. A number of changes were made to the optical flow
scripts. You have have absolute and differential estimation example
scripts. Additionally, you also have the ability to measure rotation and
scale changes too. Linear/Log Polar conversion was added for this. Users
may use the new code for generic image manipulation too. Finally, I
updated the power of 2 resolutions since you actually HAVE to use them
with optical flow for the phasecorrelation code to work correctly.

I have some more advanced scripts coming after this. But, This commit is
already getting kinda large so I'm stopping it here.
2018-01-07 17:48:07 -05:00
Kwabena W. Agyeman
30ecbdc4f8 Add white balance control.
You can now get white balance gains from the camera chip and set the
camera to then use these gains again in a new enviorment.
2017-12-31 19:56:02 -05:00
Kwabena W. Agyeman
139cdbdbc9 Add auto gain control ceiling value to be settable by the auto gain
method.

Things are in dB now too. Need to remove the previous settable method.
2017-12-30 23:54:19 -05:00
Kwabena W. Agyeman
aeb0238040 Added hmirror and vflip support to the MT9V034 and example scripts (#294)
* Added hmirror and vflip support to the MT9V034 and example scripts.

* Moved sensor example scripts to one place.

* Add delay to these script for register settling time.
2017-12-31 00:32:01 +02:00
Kwabena W. Agyeman
b906c5f192 Add auto gain control setting support (#293)
You can now get the auto gain setting in dBs and set the value in dBs.
Example scripts are included. Code was tested on the OV7725.
2017-12-30 23:18:35 +02:00
Kwabena W. Agyeman
7be0a7a182 Add exposure control for all sensors (#292)
* Textual register cleanup.

No functional changes.

* Add exposure control support.

You can now set the exposure for the camera in microseconds (versus an
opaque unknown value previously). First, we have a new method called
get_exposure_us() which will get the expsoure time in microseconds. This
let's you determine what the auto exposure algorithm set the exposure
time to. Second, the previously implmented set_auto_exposure() method
which allows you to turn aec off and on accepts a exposure_us keyword
argument when you turn aec off to manually control the exposure.

The next commit will add support for other sensor types.

* Cleanup register formatting.

No functional changes.

* Add exposure control support for the OV2640.

Register access for this chip is a PITA.

* Formatting Cleanup.

No functional changes.

* Add exposure control for ov9650.

Just doing it for all sensors.

* Add missing 2 factor.

* Added exposure control for the MT9V034.

* Add exposure control example.

Works well on the OV7725.
2017-12-30 15:56:11 +02:00
Kwabena W. Agyeman
27f5110ab7 Add extra frame buffer.
You can now allocate an extra frame buffer for storing images. However,
this takes memory from the main frame buffer. In particular this reduces
the RAM for many methods that do image processing making memory errors
more likely to happen. Note that you may allocate as many extra fb's as
you like. Dealloc happens in reverse order.

Anyway, you can use this method to now storage things like difference
images in RAM allowing for MUCH faster frame difference image
processing.

Moving on, to keep memory management sane... the second fb looks just
like an image and you can use all the image methods to load and update
it, etc. That said, if users deallocate the second FB they need to *NOT*
use the image pointer anymore. There's no way for me to delete the image
pointer in python right now so this is just something that has to be
manually managed (even if I did setup a deconstructor the second FB is
on a stack... so, things wouldn't work so easily with that).
2017-12-24 22:40:26 -05:00
iabdalkader
8160e9120e Add MT9V034 initial support. 2017-10-24 03:07:17 +02:00
iabdalkader
04a14a290f Rename SCCB/I2C driver to cambus. 2017-10-18 23:14:14 +02:00
iabdalkader
20c8b66789 Implement sensor soft sleep. 2017-10-05 01:25:49 +02:00
iabdalkader
9db426394f Update OMV Python modules for MP-1.9 2017-09-21 16:58:57 +02:00
iabdalkader
35ab0a26fc Remove invalid resolutions.
* Fix issue #261
2017-08-29 01:54:43 +02:00
iabdalkader
7d29104ed6 Add sensor.flush() 2017-06-25 16:48:17 +02:00
Kwabena W. Agyeman
343c4b9092 Add sensor width and height.
Should have added this a long time ago.
2017-06-04 21:49:07 -04:00
Kwabena W. Agyeman
a039b5d1c7 Change skip_frames() to use a 2 second timeout.
This was necessary due to the increase in the frame rate. The previous
method did not correlate to time.

All scripts updated.
2017-05-27 19:31:41 -04:00
Kwabena W. Agyeman
4d6612609e Add more resolution combinations.
With the new frame rate speed increase folks will be asking for smaller
resolutions to get 85 FPS or so when running an algorithm. This commit
adds all scaled modes of frame sizes we already support. We should be
good now on frame sizes for the present and future now.

Todo - skip frames does not run long enough anymore for auto white
balance and gain to stablize before they are turned off in some scripts.
This needs to be adjusted.
2017-05-26 20:09:59 -04:00
iabdalkader
8952962e3c Add function to set VSYNC I/O output pin. 2017-05-21 22:27:58 +02:00
iabdalkader
b94182dce4 Add new RAW/BAYER pixel format to support 2BPP VGA. 2017-03-12 03:29:49 +02:00