Working recipe for mimage

Author: fnands

recipes/mimage/README.md

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+<br/>
+<p align="center">
+  <a href="https://github.com/fnands/mimage">
+    <img src="image.jpeg" alt="Logo" width="200" height="200">
+  </a>
+
+  <h1 align="center">Mimage</h1>
+
+  <p align="center">
+    A library for reading images in pure* Mojo 🔥
+  </p>
+</p>
+
+<div align="center">
+  <img src="https://img.shields.io/badge/%F0%9F%94%A5%20Mojo-020B14?style=for-the-badge&link=https%3A%2F%2Fwww.modular.com%2Fmax%2Fmojo" />
+</div>
+
+*Not pure Mojo yet, but hopefully soon.
+## About The Project
+
+Mimage is a image manipulation library loosely based on Python's [Pillow](https://github.com/python-pillow/Pillow). The goal is to be able to read and write the most popular image formats directly from Mojo.
+
+## Quick Start
+
+Basic usage:
+
+```mojo
+import mimage as mi
+
+def main():
+
+  tensor = mi.imread("my/png/image.png")
+
+```
+
+Try out the tests yourself:
+
+```sh
+mojo -I .  tests/test_open_png.mojo
+```
+
+## Roadmap
+
+### v0.1.0 ✅
+- [x] Read simple 8-bit PNGs
+
+### Near term
+- [ ] Read jpegs
+
+### Medium term
+- [ ] Read more complex PNGs
+- [ ] Write PNGs
+- [ ] Write jpegs
+
+### Long term
+- [ ] v1.0.0 will be achieved when Mimage can open all the same images as Pillow.
+
+
+## Contributing
+
+Before creating a new issue, please:
+* Check if the issue already exists. If an issue is already reported, you can contribute by commenting on the existing issue.
+* If not, create a new issue and include all the necessary details to understand/recreate the problem or feature request.
+
+### Creating A Pull Request
+
+1. Fork the Project
+2. Create your Feature Branch
+3. Commit your Changes
+4. Push to the Branch
+5. Open a Pull Request
+> Once your changes are pushed, navigate to your fork on GitHub. And create a pull request against the original fnands/mimage repository.
+> - Before creating a PR make sure it doesn't break any of the unit-tests. (e.g. `mojo -I .  tests/test_open_png.mojo`)
+> - Introducing new big features requires a new test!
+> - In the pull request, provide a detailed description of the changes and why they're needed. Link any relevant issues.
+> - If there are any specific instructions for testing or validating your changes, include those as well.
+
+## License
+
+Distributed under the Apache 2.0 License with LLVM Exceptions. See [LICENSE](https://github.com/fnands/mimage/blob/main/LICENSE) and the LLVM [License](https://llvm.org/LICENSE.txt) for more information.
+
+## Acknowledgements
+
+* Built with [Mojo](https://github.com/modularml/mojo) created by [Modular](https://github.com/modularml)

recipes/mimage/image.jpeg

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+context:
+  version: "0.2.1"
+
+package:
+  name: "mimage"
+  version: ${{ version }}
+
+source:
+  - git: https://github.com/fnands/mimage.git
+    tag: "0.2.1"
+
+build:
+  number: 0
+  script:
+    - mojo package mimage -o ${{ PREFIX }}/lib/mojo/mimage.mojopkg
+requirements:
+  host:
+    - max=25.2
+  run:
+    - ${{ pin_compatible('max') }}
+
+tests:
+  - script:
+      - if: unix
+        then:
+          - mojo run -I ${{ PREFIX }}/lib/mojo/mimage.mojopkg  tests/test_open_png.mojo
+
+    requirements:
+      run:
+        - max=25.2
+        - pillow
+        - numpy
+
+    files:
+      recipe:
+        - tests/test_open_png.mojo
+        - tests/testing_utils.mojo
+        - tests/__init__.mojo
+        - tests/images/hopper.png
+
+about:
+  homepage: https://github.com/fnands/mimage
+  license: Apache-2.0
+  license_file: LICENSE
+  summary: mimage is a library for image processing in Mojo 🔥.
+  repository: https://github.com/fnands/mimage
+
+extra:
+  project_name: mimage
+  maintainers:
+    - fnands

recipes/mimage/recipe.yaml

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+from .testing_utils import *

recipes/mimage/tests/__init__.mojo

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+import mimage as mi
+from pathlib import Path
+from tests import compare_to_numpy
+
+
+def main():
+    hop_tensor = mi.imread("tests/images/hopper.png")
+    hop_tensor = mi.imread(String("tests/images/hopper.png"))
+    hop_tensor = mi.imread(Path("tests/images/hopper.png"))
+
+    compare_to_numpy(hop_tensor, "tests/images/hopper.png")

recipes/mimage/tests/images/hopper.png

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+from tensor import Tensor
+from python import Python
+from testing import assert_true
+
+
+fn compare_to_numpy(mojo_tensor: Tensor, image_path: StringLiteral) raises:
+    var PillowImage = Python.import_module("PIL.Image")
+    var np = Python.import_module("numpy")
+    var py_array = np.array(PillowImage.open(image_path))
+
+    for rows in range(mojo_tensor.shape()[0]):
+        for columns in range(mojo_tensor.shape()[1]):
+            for channels in range(mojo_tensor.shape()[2]):
+                assert_true(
+                    mojo_tensor[rows, columns, channels] == py_array[rows][columns][channels].__int__(),
+                    "Pixel values do not match",
+                )