WWDC 2006 2007 2008 2009 2010 2011 2012 2013 2014
DanDrake wdanxna
scturtle
/ interactive.py
Last active
March 30, 2021 06:43
python port of https://github.com/daisygao/ScannerLite
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import cv2 | |
| import numpy as np | |
| canny = rho = threshold = minLen = maxGap = None | |
| def draw(): | |
| lines = cv2.HoughLinesP(canny, rho, np.pi / 180, | |
| threshold, None, minLen, maxGap) | |
| dst = cv2.cvtColor(canny, cv2.COLOR_GRAY2BGR) |
rexguo
/ Using GL_OES_EGL_image_external on Android
Created
September 25, 2013 07:11
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 1. The texture target needs to be GLES20.GL_TEXTURE_EXTERNAL_OES instead of GL_TEXTURE_2D, e.g. in the glBindTexture calls and glTexParameteri calls. | |
| 2. In the fragment shader define a requirement to use the extension: | |
| #extension GL_OES_EGL_image_external : require | |
| 3. For the texture sampler used in the fragment shader, use samplerExternalOES instead of sampler2D. | |
| Everything below here is all in the C code, no more Java. | |
| 4. In the C code, use glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, eglImage) to specify where the data is, instead of using glTexImage2D family of functions. |