Add example for multi channel dataloader#415
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Pull Request Overview
This PR adds a new example demonstrating a rocAL dataloader for multi-channel input data processing, specifically mimicking the Deepcam training dataset pipeline. The example shows how to read numpy arrays with 16 channels, apply normalization, and perform tensor layout transformations.
- Adds a PyTorch-compatible dataloader example for multi-channel (16 channels) data
- Demonstrates numpy reader with normalization and transposition operations
- Creates dummy input data to simulate Deepcam dataset shape (768x1152x16)
Comments suppressed due to low confidence (1)
tests/python_api/pytorch_deepcam_loader.py:21
- Import of 'random' is not used.
import random
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
LakshmiKumar23
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Dec 2, 2025
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* Docs - updated the toc (#406) * rocAL Serialize PR 1- Introduce EnumRegistry (#398) * Use enums present in commons.h Remove the usage of API enums in internal node files * Remove unused include rocal_api_types.h * Introduce EnumRegistry Add support to register all internal enums * Remove redundant static cast Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Remove semicolon for enum macro * Modify name of macro * Change enums to scoped enums in commons.h * Minor fix * Remove unused includes * Add compiler keywords * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CMakeLists version for rocAL --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Fiona Gladwin <121928245+fgladwin@users.noreply.github.com> Co-authored-by: Sundar Rajan Vaithiyanathan <99159823+SundarRajan28@users.noreply.github.com> Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> * HIP - Set HIP device in output routine thread (#407) * Adding hipSetDevice in output routine thread * Remove whitespace Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Sundar Rajan Vaithiyanathan <svaithiy@amd.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> * rocAL Serialize PR 2 : Introduce Argument class (#400) * Use enums present in commons.h Remove the usage of API enums in internal node files * Remove unused include rocal_api_types.h * Introduce EnumRegistry Add support to register all internal enums * Introduce Argument class Creates an argument instance for each arg passed in the Node Handles different argument types i.e parameters, vectors, enums and predefined types * Remove redundant static cast Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Remove semicolon for enum macro * Modify name of macro * Change enums to scoped enums in commons.h * Code reorganization Create single constructor with check for different data types in Argument class * Minor fix * Remove unused includes * Add compiler keywords * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Minor change * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Minor change * Fix shared pointer fetching * Minor fix * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CMakeLists version for rocAL * Update CHANGELOG * Minor change * Update CHANGELOG.md Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> * Add const correctness to get args list --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Fiona Gladwin <121928245+fgladwin@users.noreply.github.com> Co-authored-by: Sundar Rajan Vaithiyanathan <99159823+SundarRajan28@users.noreply.github.com> Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> * Docs - removed opencl and added hip (#408) Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> * Enable Lintian Support rocAL (#403) * fix lintian errors * remove overrides install, fix formatting * fix readme error * removing docs/README.md --------- Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> * Docs - Bump rocm-docs-core[api_reference] from 1.27.0 to 1.29.0 in /docs/sphinx (#416) Bumps [rocm-docs-core[api_reference]](https://github.com/ROCm/rocm-docs-core) from 1.27.0 to 1.29.0. - [Release notes](https://github.com/ROCm/rocm-docs-core/releases) - [Changelog](https://github.com/ROCm/rocm-docs-core/blob/develop/CHANGELOG.md) - [Commits](ROCm/rocm-docs-core@v1.27.0...v1.29.0) --- updated-dependencies: - dependency-name: rocm-docs-core[api_reference] dependency-version: 1.29.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Docs - readding the readme (#417) Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> * Bug fixes - HIP (#409) * Fix bug in CropResize node * Use HIP mem for fused crop rocjpeg decoder * Fix bug with ROI updation in numpy loader * Resolve review comments --------- Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> Co-authored-by: Fiona-MCW <70996026+fiona-gladwin@users.noreply.github.com> * Docs - Bump rocm-docs-core[api_reference] from 1.29.0 to 1.30.0 in /docs/sphinx (#418) Bumps [rocm-docs-core[api_reference]](https://github.com/ROCm/rocm-docs-core) from 1.29.0 to 1.30.0. - [Release notes](https://github.com/ROCm/rocm-docs-core/releases) - [Changelog](https://github.com/ROCm/rocm-docs-core/blob/develop/CHANGELOG.md) - [Commits](ROCm/rocm-docs-core@v1.29.0...v1.30.0) --- updated-dependencies: - dependency-name: rocm-docs-core[api_reference] dependency-version: 1.30.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Docs - Bump rocm-docs-core[api_reference] from 1.30.0 to 1.30.1 in /docs/sphinx (#423) Bumps [rocm-docs-core[api_reference]](https://github.com/ROCm/rocm-docs-core) from 1.30.0 to 1.30.1. - [Release notes](https://github.com/ROCm/rocm-docs-core/releases) - [Changelog](https://github.com/ROCm/rocm-docs-core/blob/develop/CHANGELOG.md) - [Commits](ROCm/rocm-docs-core@v1.30.0...v1.30.1) --- updated-dependencies: - dependency-name: rocm-docs-core[api_reference] dependency-version: 1.30.1 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * rocAL Serialize PR 3 : Introduce PipelineOperator class (#401) * Use enums present in commons.h Remove the usage of API enums in internal node files * Remove unused include rocal_api_types.h * Introduce EnumRegistry Add support to register all internal enums * Introduce Argument class Creates an argument instance for each arg passed in the Node Handles different argument types i.e parameters, vectors, enums and predefined types * Introduce PipelineOperator class * Add support to create and return node name and tensor name * Add support in MasterGraph to store details of PipelineOperators * Add support to store the argument details in the node for brightness and ImageLoaderNode * Remove redundant static cast Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Remove semicolon for enum macro * Modify name of macro * Change enums to scoped enums in commons.h * Code reorganization Create single constructor with check for different data types in Argument class * Minor fix * Remove unused includes * Add compiler keywords * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Minor change * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update rocAL/include/pipeline/argument.h Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Minor change * Fix shared pointer fetching * Minor fix * Minor fix * Apply suggestions from code review Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CHANGELOG.md * Update CMakeLists version for rocAL * Update CHANGELOG * Update CHANGELOG.md * Minor change * Minor changes * Update CHANGELOG.md Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> * Add const qualifier * Add const correctness to get args list * Minor change * Add const correctness to get args list * Update CHANGELOG * Generate UID for tensors from MasterGraph * Minor change * Resolve copilot review comments * Minor change * Minor changes --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Fiona Gladwin <121928245+fgladwin@users.noreply.github.com> Co-authored-by: Sundar Rajan Vaithiyanathan <99159823+SundarRajan28@users.noreply.github.com> Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> * CMakeLists - Update GPU targets (#421) Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> * multi channel dataloader - example/sample (#415) * Update numpy reader example * Add new example and remove changes from other example * Update comment * Remove unused import Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Resolve review comments --------- Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> Co-authored-by: Fiona-MCW <70996026+fiona-gladwin@users.noreply.github.com> Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com> Co-authored-by: Sundar Rajan Vaithiyanathan <svaithiy@amd.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Docs - Update CHANGELOG.md (#424) * Update CHANGELOG.md Updates for 7.2 * Changelog - bugfixes --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Co-authored-by: Fiona-MCW <70996026+fiona-gladwin@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Fiona Gladwin <121928245+fgladwin@users.noreply.github.com> Co-authored-by: Sundar Rajan Vaithiyanathan <99159823+SundarRajan28@users.noreply.github.com> Co-authored-by: Sundar Rajan Vaithiyanathan <svaithiy@amd.com> Co-authored-by: Lakshmi Kumar <lakshmi.kumar@amd.com> Co-authored-by: jonatluu <jonatluu@amd.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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Motivation
Adds a new python example showcasing a rocAL dataloader which reads multi channel input data and performs augmentations on the inputs
Example for #413
Technical Details
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