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2687 <span class="md-nav__icon md-icon"></span> 2688 </label> 2689 2690 <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_8_label" aria-expanded="false"> 2691 <label class="md-nav__title" for="__nav_8"> 2692 <span class="md-nav__icon md-icon"></span> 2693 2694 2695 Ecosystem 2696 2697 2698 </label> 2699 <ul class="md-nav__list" data-md-scrollfix> 2700 2701 2702 2703 2704 2705 2706 2707 <li class="md-nav__item"> 2708 <a href="../../ecosystem/clients/" class="md-nav__link"> 2709 2710 2711 2712 <span class="md-ellipsis"> 2713 2714 2715 Chroma Ecosystem Clients 2716 2717 2718 2719 </span> 2720 2721 2722 2723 </a> 2724 </li> 2725 2726 2727 2728 2729 </ul> 2730 </nav> 2731 2732 </li> 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 <li class="md-nav__item md-nav__item--nested"> 2754 2755 2756 2757 <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_9" > 2758 2759 2760 <label class="md-nav__link" for="__nav_9" id="__nav_9_label" tabindex="0"> 2761 2762 2763 2764 <span class="md-ellipsis"> 2765 2766 2767 Contributing 2768 2769 2770 2771 </span> 2772 2773 2774 2775 <span class="md-nav__icon md-icon"></span> 2776 </label> 2777 2778 <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_9_label" aria-expanded="false"> 2779 <label class="md-nav__title" for="__nav_9"> 2780 <span class="md-nav__icon md-icon"></span> 2781 2782 2783 Contributing 2784 2785 2786 </label> 2787 <ul class="md-nav__list" data-md-scrollfix> 2788 2789 2790 2791 2792 2793 2794 2795 <li class="md-nav__item"> 2796 <a href="../../contributing/getting-started/" class="md-nav__link"> 2797 2798 2799 2800 <span class="md-ellipsis"> 2801 2802 2803 Getting Started with Contributing to Chroma 2804 2805 2806 2807 </span> 2808 2809 2810 2811 </a> 2812 </li> 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 <li class="md-nav__item"> 2824 <a href="../../contributing/useful-shortcuts/" class="md-nav__link"> 2825 2826 2827 2828 <span class="md-ellipsis"> 2829 2830 2831 Useful Shortcuts for Contributors 2832 2833 2834 2835 </span> 2836 2837 2838 2839 </a> 2840 </li> 2841 2842 2843 2844 2845 </ul> 2846 </nav> 2847 2848 </li> 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 <li class="md-nav__item md-nav__item--nested"> 2870 2871 2872 2873 <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_10" > 2874 2875 2876 <div class="md-nav__link md-nav__container"> 2877 <a href="../../faq/" class="md-nav__link "> 2878 2879 2880 2881 <span class="md-ellipsis"> 2882 2883 2884 FAQ 2885 2886 2887 2888 </span> 2889 2890 2891 2892 </a> 2893 2894 </div> 2895 2896 <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_10_label" aria-expanded="false"> 2897 <label class="md-nav__title" for="__nav_10"> 2898 <span class="md-nav__icon md-icon"></span> 2899 2900 2901 FAQ 2902 2903 2904 </label> 2905 <ul class="md-nav__list" data-md-scrollfix> 2906 2907 2908 2909 </ul> 2910 </nav> 2911 2912 </li> 2913 2914 2915 2916 </ul> 2917</nav> 2918 </div> 2919 </div> 2920 </div> 2921 2922 2923 2924 <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" > 2925 <div class="md-sidebar__scrollwrap"> 2926 <div class="md-sidebar__inner"> 2927 2928 2929 2930 2931<nav class="md-nav md-nav--secondary" aria-label="On this page"> 2932 2933 2934 2935 2936 2937 2938 <label class="md-nav__title" for="__toc"> 2939 <span class="md-nav__icon md-icon"></span> 2940 On this page 2941 </label> 2942 <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix> 2943 2944 <li class="md-nav__item"> 2945 <a href="#quick-start-pattern" class="md-nav__link"> 2946 <span class="md-ellipsis"> 2947 2948 Quick Start Pattern 2949 2950 </span> 2951 </a> 2952 2953</li> 2954 2955 <li class="md-nav__item"> 2956 <a href="#short-snippet" class="md-nav__link"> 2957 <span class="md-ellipsis"> 2958 2959 Short Snippet 2960 2961 </span> 2962 </a> 2963 2964</li> 2965 2966 <li class="md-nav__item">
2967 <a href="#end-to-end-python-walkthrough" class="md-nav__link"> 2968 <span class="md-ellipsis"> 2969 2970 End-to-End Python Walkthrough 2971 2972 </span> 2973 </a> 2974 2975</li> 2976 2977 <li class="md-nav__item"> 2978 <a href="#operational-notes" class="md-nav__link"> 2979 <span class="md-ellipsis"> 2980 2981 Operational Notes 2982 2983 </span> 2984 </a> 2985 2986</li> 2987 2988 <li class="md-nav__item"> 2989 <a href="#core-references" class="md-nav__link"> 2990 <span class="md-ellipsis"> 2991 2992 Core References 2993 2994 </span> 2995 </a> 2996 2997</li> 2998 2999 <li class="md-nav__item"> 3000 <a href="#full-runnable-example" class="md-nav__link"> 3001 <span class="md-ellipsis"> 3002 3003 Full Runnable Example 3004 3005 </span> 3006 </a> 3007 3008</li> 3009 3010 </ul> 3011 3012</nav> 3013 </div> 3014 </div> 3015 </div> 3016 3017 3018 3019 <div class="md-content" data-md-component="content"> 3020 3021 <article class="md-content__inner md-typeset"> 3022 3023 3024 3025 3026 3027 3028 3029 3030<h1 id="image-search-multimodal-retrieval">Image Search (Multimodal Retrieval)<a class="headerlink" href="#image-search-multimodal-retrieval" title="Permanent link">¶</a></h1> 3031<p>This page covers local/OSS image search with Chroma using OpenCLIP embeddings. 3032You can index image URIs and query by:</p> 3033<ul> 3034<li>text (<code>query_texts</code>) for text-to-image retrieval</li> 3035<li>image URI (<code>query_uris</code>) for image-to-image retrieval</li> 3036</ul> 3037<p>This is useful when you need one collection to support both semantic text prompts and visual similarity search.</p> 3038<div class="admonition note"> 3039<p class="admonition-title">Language Scope</p> 3040<p>This strategy currently ships with a Python runnable example. 3041The OpenCLIP + <code>ImageLoader</code> workflow demonstrated here is Python-centric in this cookbook.</p> 3042</div> 3043<h2 id="quick-start-pattern">Quick Start Pattern<a class="headerlink" href="#quick-start-pattern" title="Permanent link">¶</a></h2> 3044<p>Use this default flow:</p> 3045<ol> 3046<li>Create a collection with <code>OpenCLIPEmbeddingFunction</code> and <code>ImageLoader</code>.</li> 3047<li>Add local image URIs via <code>collection.add(..., uris=[...])</code>.</li> 3048<li>Query by text for discovery (<code>query_texts=["a photo of a dog"]</code>).</li> 3049<li>Query by image URI for visual nearest-neighbor lookup (<code>query_uris=[...]</code>).</li> 3050<li>Add metadata filters (<code>where</code>) when you need constrained retrieval by source, category, or tenant.</li> 3051</ol> 3052<h2 id="short-snippet">Short Snippet<a class="headerlink" href="#short-snippet" title="Permanent link">¶</a></h2> 3053<div class="admonition note"> 3054<p class="admonition-title">Concept Snippet</p> 3055<p>This snippet is intentionally small and may omit setup.
3056Use the runnable example for an end-to-end script.</p> 3057</div> 3058<div class="language-python highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="kn">from</span><span class="w"> </span><span class="nn">chromadb.utils.data_loaders</span><span class="w"> </span><span class="kn">import</span> <span class="n">ImageLoader</span> 3059</span><span id="__span-0-2"><a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="kn">from</span><span class="w"> </span><span class="nn">chromadb.utils.embedding_functions</span><span class="w"> </span><span class="kn">import</span> <span class="n">OpenCLIPEmbeddingFunction</span> 3060</span><span id="__span-0-3"><a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a> 3061</span><span id="__span-0-4"><a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="n">collection</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">create_collection</span><span class="p">(</span> 3062</span><span id="__span-0-5"><a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a> <span class="n">name</span><span class="o">=</span><span class="s2">"multimodal_collection"</span><span class="p">,</span> 3063</span><span id="__span-0-6"><a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a> <span class="n">embedding_function</span><span class="o">=</span><span class="n">OpenCLIPEmbeddingFunction</span><span class="p">(),</span> 3064</span><span id="__span-0-7"><a id="__codelineno-0-7" name="__codelineno-0-7" href="#__codelineno-0-7"></a> <span class="n">data_loader</span><span class="o">=</span><span class="n">ImageLoader</span><span class="p">(),</span> 3065</span><span id="__span-0-8"><a id="__codelineno-0-8" name="__codelineno-0-8" href="#__codelineno-0-8"></a><span class="p">)</span> 3066</span><span id="__span-0-9"><a id="__codelineno-0-9" name="__codelineno-0-9" href="#__codelineno-0-9"></a> 3067</span><span id="__span-0-10"><a id="__codelineno-0-10" name="__codelineno-0-10" href="#__codelineno-0-10"></a><span class="n">collection</span><span class="o">.</span><span class="n">add</span><span class="p">(</span> 3068</span><span id="__span-0-11"><a id="__codelineno-0-11" name="__codelineno-0-11" href="#__codelineno-0-11"></a> <span class="n">ids</span><span class="o">=</span><span class="p">[</span><span class="s2">"cat"</span><span class="p">,</span> <span class="s2">"dog"</span><span class="p">],</span> 3069</span><span id="__span-0-12"><a id="__codelineno-0-12" name="__codelineno-0-12" href="#__codelineno-0-12"></a> <span class="n">uris</span><span class="o">=</span><span class="p">[</span><span class="s2">"/path/to/cat.png"</span><span class="p">,</span> <span class="s2">"/path/to/dog.jpg"</span><span class="p">],</span> 3070</span><span id="__span-0-13"><a id="__codelineno-0-13" name="__codelineno-0-13" href="#__codelineno-0-13"></a> <span class="n">metadatas</span><span class="o">=</span><span class="p">[{</span><span class="s2">"label"</span><span class="p">:</span> <span class="s2">"cat"</span><span class="p">},</span> <span class="p">{</span><span class="s2">"label"</span><span class="p">:</span> <span class="s2">"dog"</span><span class="p">}],</span> 3071</span><span id="__span-0-14"><a id="__codelineno-0-14" name="__codelineno-0-14" href="#__codelineno-0-14"></a><span class="p">)</span> 3072</span><span id="__span-0-15"><a id="__codelineno-0-15" name="__codelineno-0-15" href="#__codelineno-0-15"></a> 3073</span><span id="__span-0-16"><a id="__codelineno-0-16" name="__codelineno-0-16" href="#__codelineno-0-16"></a><span class="n">text_results</span> <span class="o">=</span> <span class="n">collection</span><span class="o">.</span><span class="n">query</span><span class="p">(</span> 3074</span><span id="__span-0-17"><a id="__codelineno-0-17" name="__codelineno-0-17" href="#__codelineno-0-17"></a> <span class="n">query_texts</span><span class="o">=</span><span class="p">[</span><span class="s2">"a photo of a dog"</span><span class="p">],</span> 3075</span><span id="__span-0-18"><a id="__codelineno-0-18" name="__codelineno-0-18" href="#__codelineno-0-18"></a> <span class="n">n_results</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> 3076</span><span id="__span-0-19"><a id="__codelineno-0-19" name="__codelineno-0-19" href="#__codelineno-0-19"></a> <span class="n">include</span><span class="o">=</span><span class="p">[</span><span class="s2">"uris"</span><span class="p">,</span> <span class="s2">"metadatas"</span><span class="p">,</span> <span class="s2">"distances"</span><span class="p">],</span> 3077</span><span id="__span-0-20"><a id="__codelineno-0-20" name="__codelineno-0-20" href="#__codelineno-0-20"></a><span class="p">)</span> 3078</span><span id="__span-0-21"><a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a> 3079</span><span id="__span-0-22"><a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a><span class="n">image_results</span> <span class="o">=</span> <span class="n">collection</span><span class="o">.</span><span class="n">query</span><span class="p">(</span> 3080</span><span id="__span-0-23"><a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a> <span class="n">query_uris</span><span class="o">=</span><span class="p">[</span><span class="s2">"/path/to/dog.jpg"</span><span class="p">],</span> 3081</span><span id="__span-0-24"><a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a> <span class="n">n_results</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> 3082</span><span id="__span-0-25"><a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a> <span class="n">include</span><span class="o">=</span><span class="p">[</span><span class="s2">"uris"</span><span class="p">,</span> <span class="s2">"metadatas"</span><span class="p">,</span> <span class="s2">"distances"</span><span class="p">],</span> 3083</span><span id="__span-0-26"><a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a><span class="p">)</span> 3084</span></code></pre></div>
3085<h2 id="end-to-end-python-walkthrough">End-to-End Python Walkthrough<a class="headerlink" href="#end-to-end-python-walkthrough" title="Permanent link">¶</a></h2> 3086<p>The runnable example uses:</p> 3087<ul> 3088<li>local persistence (<code>PersistentClient</code>)</li> 3089<li>bundled sample images (<code>cat</code>, <code>dog</code>, <code>dog-with-person</code>)</li> 3090<li>OpenCLIP embeddings generated by Chroma</li> 3091</ul> 3092<p>Run:</p> 3093<div class="language-bash highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="nb">cd</span><span class="w"> </span>examples/image-search/python 3094</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>python3<span class="w"> </span>-m<span class="w"> </span>venv<span class="w"> </span>.venv 3095</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="nb">source</span><span class="w"> </span>.venv/bin/activate 3096</span><span id="__span-1-4"><a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a>pip<span class="w"> </span>install<span class="w"> </span>-r<span class="w"> </span>requirements.txt 3097</span><span id="__span-1-5"><a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a>python<span class="w"> </span>image_search.py 3098</span></code></pre></div> 3099<p>Expected output includes:</p> 3100<ul> 3101<li>ranked text-to-image results for <code>"a photo of a dog"</code></li> 3102<li>ranked text-to-image results for <code>"a photo of a cat"</code></li> 3103<li>ranked image-to-image results using <code>dog-with-person.jpg</code> as query</li> 3104</ul> 3105<h2 id="operational-notes">Operational Notes<a class="headerlink" href="#operational-notes" title="Permanent link">¶</a></h2> 3106<ul> 3107<li>First run downloads model weights; startup is slower initially.</li> 3108<li>CPU-only execution works but is slower than GPU.</li> 3109<li>Keep image files accessible on disk if you store local URIs.</li> 3110<li>Use metadata (<code>where</code>) to scope search in multi-tenant or multi-source pipelines.</li> 3111<li>Example data is written under <code>examples/image-search/python/chroma_data/image_search_example</code>.</li> 3112</ul> 3113<h2 id="core-references">Core References<a class="headerlink" href="#core-references" title="Permanent link">¶</a></h2> 3114<ul> 3115<li><a href="../../core/collections/">Collections API (<code>add</code>, <code>query</code>, result shapes)</a></li> 3116<li><a href="../../embeddings/embedding-models/">Embedding Models (overview of supported models)</a></li> 3117<li><a href="../../embeddings/gpu-support/">Embedding Functions GPU Support (OpenCLIP)</a></li> 3118</ul> 3119<h2 id="full-runnable-example">Full Runnable Example<a class="headerlink" href="#full-runnable-example" title="Permanent link">¶</a></h2> 3120<ul> 3121<li><a href="https://github.com/amikos-tech/chroma-cookbook/tree/main/examples/image-search">Overview and run commands</a></li> 3122<li><a href="https://github.com/amikos-tech/chroma-cookbook/blob/main/examples/image-search/python/image_search.py">Python</a></li> 3123<li><a href="https://github.com/amikos-tech/chroma-cookbook/blob/main/examples/image-search/python/requirements.txt">Requirements</a></li> 3124</ul> 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 <aside class="md-source-file"> 3139 3140 3141 <span class="md-source-file__fact"> 3142 <span class="md-icon" title="Last update"> 3143 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M21 13.1c-.1 0-.3.1-.4.2l-1 1 2.1 2.1 1-1c.2-.2.2-.6 0-.8l-1.3-1.3c-.1-.1-.2-.2-.4-.2m-1.9 1.8-6.1 6V23h2.1l6.1-6.1zM12.5 7v5.2l4 2.4-1 1L11 13V7zM11 21.9c-5.1-.5-9-4.8-9-9.9C2 6.5 6.5 2 12 2c5.3 0 9.6 4.1 10 9.3-.3-.1-.6-.2-1-.2s-.7.1-1 .2C19.6 7.2 16.2 4 12 4c-4.4 0-8 3.6-8 8 0 4.1 3.1 7.5 7.1 7.9l-.1.2z"/></svg> 3144 </span> 3145 <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date" title="February 27, 2026 06:10:59 UTC">February 27, 2026</span> 3146 </span> 3147 3148 3149 3150 3151 3152 </aside> 3153 3154 3155 3156 3157 3158 3159 3160 3161 </article> 3162 </div> 3163 3164
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