Python equirectangular to cubemap example. GitHub Gist: instantly share code, notes, and snippets.

Python equirectangular to cubemap example. Higashi (2018): Cube-to-sphere Projections for Procedural Texturing and Beyond (Ch. Brown (2017): Bringing pixels front and center in VR video; Optimized Tangens Cubemap (OTC) M. convert() accepts a texture as source and a number (power of two) as size (with and height) of the cube map. equirect2cubemap(srcFrame, side=256, modif=False, dice=False) ¶ Parameters srcFrame – Input equirectangular image side – Width of face of the cube in pixels modif – Flag to be set when the fisheye camera is placed parallel to the ground. GitHub Gist: instantly share code, notes, and snippets. Equirectangular to cubemap Run the following: equitocubemap IMAGE CUBEMAP_RESOLUTION OUTPUT_LOCATION For example, equitocubemap ~/Pictures/earth-8k. The image should have an aspect ratio of 2:1 (the width must be exactly twice the height). A real world example follows, first image is the equirectangular projection, the second the standard non-equalangle cubemaps, and the last the equalangular cubemaps. Tensor, list of torch. The library is based on PyTorch and support both CPU and GPU modes. 6 (c++ is WIP). Wd – Output image width Converts a cubemap projection to an equirectangular image. Compatible with cuda tensors for faster processing. convert360 --convert e2c --i assert/example_input. Returns: Cubemap representation of the input image as a tensor, list of tensors, or dict or tensors. Parameters: So . Equirectangular panorama to cube map (Python 3). png --w 200 Input Equirectangular Mar 17, 2023 · 全天球画像(equirectangular)を立方体の展開図CubeMapへPython使って変換してみます。このあたりすでにライブラリはあるようなのですが、原理を確認しながら自前で書いてみます。ちなみにこの逆変換に関してはこちらで。全天 All 5 C++ 2 Go 1 Python 1 Rust 1. Python implementation of convertion between equirectangular, cubemap and perspective. Defaults to the PyTorch CHW standard of True. ; No need for other dependencies except for numpy and torch. png --o assert/example_e2c. The site also provides cube map to equirectagle transforms (3). A cubemap will be generated from your image. My cur Apr 24, 2025 · Metashapeは全天球画像(エクイレクタングラー)の処理に対応していますが、アライメント結果を他のSfM系ソフトで利用する場合は、全天球画像のままでは渡すことが出来ません。 An Utility to convert equirectangular panorama into cubemap and vice versa. For detailed usage of this repo, please see example. jpg and _lf. 3. If you want to grab the cube map from a single image, go to the cubeMap2Equrec. Parameters: cubemap (torch. jpg, _rt. py. Tensor): Cubemap image tensor, list of tensors, or dict of tensors. png --w 200 Input Equirectangular Mar 23, 2025 · channels_first (bool, optional): Input cubemap channel format (CHW or HWC). THREE. and links to the equirectangular-to-cubemap topic page so that developers can more easily learn about it. Of course if these are used as the cubemap source then the interactive player needs to be aware of the mapping. (equirect2cube, cube2equirect, equirect2perspec) python converter perspective cubemap 360 equirectangular Convert equirectangular panorama img to cubemap img - blackironj/panorama The default implementation only considers the case where the cube map is in six separate files. Python Example ¶ Converting equirectangular image to cubemap ¶ fisheyeImgConv. Vectorization implementation: If opencv is installed, py360convert will automatically use it to accelerate computations (several times speedup). Zucker & Y. FOV – field of view (in horizontal direction) Theta – Viewing angle wrt z axis. As a dataset, I used data published by Youtuber Young360. The explaination of spherical projection and the algorithm are introduced in 1811. indus / kubi. Sep 5, 2022 · Equations and code behind conversion between equirectangular images and cubemaps. Hd – Output image height. 🌎→🗾Equirectangular (360/panoramic) image processing library for Python with minimal dependencies only using Numpy and PyTorch - haruishi43/equilib Panorama to Cubemap Convert a 360° panorama to six cube faces. The following algorithm will convert a equirectangular image to six individual images that can be used for a cube map. Phi – VIewing angle wrt y axis. Figure2 is to be rendered into a sphere using Unity. Usage. Features of this project: Conversion between cubemap and equirectangular: Conversion between Equirectangular and planar: Pure python implementation and depend only on numpy and scipy. jpg 4096 ~/Pictures/cubemap/ The six cubemap image will be saved in OUTPUT_LOCATION with the prefixes _ft. Apr 1, 2020 · sphere2cube . 5) Both transforms are univariate and therefore very easy to implement. Upload Upload a panoramic image: The image should be formatted with the equirectangular projection. jpg, _dn. Install pip install py360convert You can use the This is a fork from sunset1995/py360convert. Figure1 Figure2 It is possible to go from Spherical to Cubic (by following: Convert 2:1 equirectangular panorama to cube map), but lost on how to reverse it. sphere2cube is a Python script to map equirectangular (cylindrical projection, skysphere) map into 6 cube (cubemap, skybox) faces. EquirectangularToCubemap automatically checks for the maximum possible size for cube maps, and clamps the size provided (there seems to be a bug with Android, at least in Nexus 5 Android 6) Dec 12, 2022 · 全景静态图api百度地图全景静态图api与静态图api类似，可轻松实现将全景地图以图片形式嵌入到您的应用中。您只需要设置图片尺寸、经纬度坐标等参数，发送http请求访问百度地图全景静态图服务，便可在您的pc浏览器、手机浏览器、移动app或者车机显示屏中以图片形式显示您的全景图。 cube2sphere is a Python script to map 6 cube (cubemap, skybox) faces into an equirectangular (cylindrical projection, skysphere) map. jpg. (equirect2cube, cube2equirect, equirect2perspec) python converter perspective cubemap 360 equirectangular May 21, 2023 · そのような6面画像はcubemap画像(下画像)と呼ばれています。 今回はequirectangular画像からcubemap画像への変換をPythonで実装してみました。データセットとしては、YoutuberのYoung360さんが公開しているデータを使用しています。 Algorithm Feb 3, 2024 · The python script is also an example code to see how to use this as a package in your code. On average we, as humans, can see about 180°… Jan 16, 2024 · A library for processing equirectangular image that runs on Python. Equi-Angular Cubemap (EAC) C. 05304. The python script is also an example code to see how to use this as a package in your code. cpp file (either in the OpenMP or the CUDA implementation according to your needs) and comment and uncomment the following section as follows: Oct 30, 2024 · Given six quadratic cubemaps (aspect ratio 1:1, resolution 1000x1000) with a FOV of 90°, I'm trying to convert them into an equirectangular panorama (aspect ratio 2:1, resolution 4000x2000). Fred Weinhaus offers transform examples available online that convert equirectangular projections to cube map faces (2). See also cube2sphere. Developed using Python>=3. c2e(cubemap, h, w, mode='bilinear', cube_format='dice') Converts a cubemap projection to an equirectangular image. It’s all about defining the correct transformation maps for OpenCV. Example code for equirectangular to perspective conversion¶ fisheyeUtils. See also sphere2cube . jpg, _up. Tensor, or dict of torch. Dec 13, 2015 · I want to convert from cube map [figure1] into an equirectangular panorama [figure2]. Equirectangular map This is a panorama (equirectangular) image, which is 360 degrees along the x-axis, and 180 degrees along the y-axis. May 20, 2023 · Cubemap image In this article, I implemented the conversion from equirectangular images to cubemap images in Python. Usage Python implementation of convertion between equirectangular, cubemap and perspective. jpg, _bk. 2 & Ch. Settings Jun 28, 2024 · Once the images are captured, they will need to be processed for a final tiled cube map or equirectangular image. img – input cubemap image. May 12, 2025 · py360convert Features of this project: Conversion between cubemap and equirectangular: Conversion between Equirectangular and planar: Pure python implementation and depend only on numpy and scipy. py360convert A new library including more Apr 16, 2015 · They take a spherical panorama (equirectangular --- 360 deg horizontally and 180 deg vertically) and seem to convert to the cube faces using a Cartesian <-> cylindrical transformation. eqruirect2persp (img, FOV, Theta, Phi, Hd, Wd) ¶ Parameters. uvsabdxk juq wqola jctij hlhn sjip apnpbim dpox joog kqmd