Anuj Pahuja alasin
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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| from mpl_toolkits.mplot3d import Axes3D | |
| import math | |
| def RANSAC(x, y, z, num_iter, threshold): | |
| best_inliers = [] | |
| num_best_inliers = 0 |
alasin
/ random_batch.py
Created
August 10, 2017 08:40
Gets a batch of random patches from images in memory
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| def get_random_patch(input_image, target_image, patch_size): | |
| start_x = np.random.randint(input_image.shape[0] - patch_size) | |
| start_y = np.random.randint(input_image.shape[1] - patch_size) | |
| end_x = start_x + patch_size | |
| end_y = start_y + patch_size | |
| input_patch = input_image[start_x:end_x, start_y:end_y] | |
| target_patch = target_image[start_x:end_x, start_y:end_y] | |
| return [input_patch, target_patch] |
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| gst-launch-1.0 v4l2src device=/dev/video0 ! "video/x-raw, width=640, height=480" ! videobox border-alpha=0 left=-640 ! queue ! videomixer name=mix ! videoconvert ! x264enc ! matroskamux ! filesink location=test.mkv sync=false videotestsrc ! "video/x-raw, width=640, height=480" ! videobox border-alpha=0 left=0 ! mix. |
alasin
/ install_gstreamer.sh
Last active
October 21, 2020 21:31
Script for installing Gstreamer and plugins. Change version number accordingly.
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| #!/bin/bash | |
| VERSION=1.12.0 | |
| mkdir ~/gstreamer_$VERSION | |
| cd ~/gstreamer_$VERSION | |
| wget https://gstreamer.freedesktop.org/src/gst-plugins-base/gst-plugins-base-$VERSION.tar.xz | |
| wget https://gstreamer.freedesktop.org/src/gstreamer/gstreamer-$VERSION.tar.xz | |
| wget https://gstreamer.freedesktop.org/src/gst-plugins-ugly/gst-plugins-ugly-$VERSION.tar.xz |
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| #https://docs.docker.com/engine/installation/linux/ubuntulinux/ | |
| sudo apt-get update | |
| sudo apt-get install apt-transport-https ca-certificates | |
| sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D | |
| echo "deb https://apt.dockerproject.org/repo ubuntu-trusty main" | sudo tee /etc/apt/sources.list.d/docker.list | |
| sudo apt-get update |
alasin
/ WLSfilter snippet
Created
October 4, 2016 09:32
Code for WLS filter for OpenCV version <3.1
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| #define EPS 1e-43f | |
| typedef float WorkType; | |
| typedef Vec<WorkType, 1> WorkVec; | |
| typedef WorkType (*get_weight_op)(WorkType*, unsigned char*,unsigned char*); | |
| inline WorkType get_weight_1channel(WorkType* LUT, unsigned char* p1,unsigned char* p2) | |
| { | |
| return LUT[ (p1[0]-p2[0])*(p1[0]-p2[0]) ]; | |
| } |
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| mplayer tv:// -tv driver=v4l2:norm=PAL:input=0:amode=1:width=704:height=576:outfmt=yv12:device=/dev/video1 |
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| gst-launch-1.0 udpsrc port=5004 ! "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)YCbCr-4:2:2, depth=(string)8, width=(string)720, height=(string)576, colorimetry=(string)BT601-5, payload=(int)96" ! rtpvrawdepay ! videoconvert ! autovideosink -v |
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| JPG -> YUV | |
| ffmpeg -i test-640x480.jpg -s 640x480 -pix_fmt yuv420p test-yuv420p.yuv | |
| YUV -> JPG | |
| ffmpeg -s 640x480 -pix_fmt yuv420p -i test-yuv420p.yuv test-640x480.jpg |