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✨ feat: add feature image identification
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src/features/learn-through-images/LearnThroughImagesPage.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,194 @@ | ||
| import "@tensorflow/tfjs-backend-webgl"; | ||
| import * as mobilenet from "@tensorflow-models/mobilenet"; | ||
| import { Button, Heading, HStack, Input, Text, VStack, Image, Box, Grid } from "@chakra-ui/react"; | ||
| import React from "react"; | ||
| import { Link } from "react-router-dom"; | ||
|
|
||
| const LearnThroughImagesPage = () => { | ||
| return <div>LearnThroughImagesPage</div>; | ||
| const imageRef = React.useRef<HTMLImageElement>(null); | ||
| const textInputRef = React.useRef<HTMLInputElement>(null); | ||
| const fileInputRef = React.useRef<HTMLInputElement>(null); | ||
|
|
||
| const [isModelLoading, setIsModelLoading] = React.useState(false); | ||
| const [model, setModel] = React.useState<mobilenet.MobileNet | null>(null); | ||
| const [history, setHistory] = React.useState<string[]>([]); | ||
| const [imageURL, setImageURL] = React.useState<string | null>(null); | ||
| const [results, setResults] = React.useState< | ||
| | { | ||
| className: string; | ||
| probability: number; | ||
| }[] | ||
| | undefined | ||
| >([]); | ||
|
|
||
| const handleOnChange = (e: React.ChangeEvent<HTMLInputElement>) => { | ||
| setImageURL(e.target.value); | ||
| setResults([]); | ||
| }; | ||
|
|
||
| const uploadImage = (e: React.ChangeEvent<HTMLInputElement>) => { | ||
| const { files } = e.target; | ||
| if (files!.length > 0) { | ||
| const url = URL.createObjectURL(files![0]); | ||
| setImageURL(url); | ||
| } else { | ||
| setImageURL(null); | ||
| } | ||
| }; | ||
|
|
||
| const triggerUpload = () => { | ||
| fileInputRef.current?.click(); | ||
| }; | ||
|
|
||
| const loadModel = async () => { | ||
| setIsModelLoading(true); | ||
| try { | ||
| const model = await mobilenet.load(); | ||
| setModel(model); | ||
| setIsModelLoading(false); | ||
| } catch (error) { | ||
| console.log(error); | ||
| setIsModelLoading(false); | ||
| } | ||
| }; | ||
|
|
||
| React.useEffect(() => { | ||
| if (imageURL && !history.includes(imageURL)) { | ||
| setHistory([imageURL, ...history]); | ||
| } | ||
| // eslint-disable-next-line react-hooks/exhaustive-deps | ||
| }, [imageURL]); | ||
|
|
||
| React.useEffect(() => { | ||
| loadModel(); | ||
| }, []); | ||
|
|
||
| const identify = async () => { | ||
| if (isModelLoading) return; | ||
| textInputRef.current!.value = ""; | ||
| const results = await model?.classify(imageRef.current!); | ||
| setResults(results); | ||
| console.log(results); | ||
| }; | ||
|
|
||
| return ( | ||
| <div> | ||
| <VStack marginTop={"10px"} marginBottom={"20px"}> | ||
| <Heading size="lg">Image identification</Heading> | ||
| </VStack> | ||
| <HStack gap={{ base: "10px", lg: "25px" }}> | ||
| <div> | ||
| <input | ||
| type="file" | ||
| accept="image/*" | ||
| className="w-0 h-0 hidden opacity-0" | ||
| onChange={uploadImage} | ||
| ref={fileInputRef} | ||
| /> | ||
| <Button colorScheme="blue" onClick={triggerUpload}> | ||
| Upload Image | ||
| </Button> | ||
| </div> | ||
| <Text fontWeight="medium">OR</Text> | ||
| <Input placeholder="Paste image URL" className="max-w-[500px]" ref={textInputRef} onChange={handleOnChange} /> | ||
| </HStack> | ||
| {imageURL && ( | ||
| <div> | ||
| <VStack alignItems={"flex-start"} gap={"20px"} marginTop={"12px"} marginBottom={"6px"}> | ||
| <VStack alignItems={"flex-start"}> | ||
| <Box> | ||
| <Image | ||
| src={imageURL} | ||
| alt="Upload Preview" | ||
| ref={imageRef} | ||
| width={"full"} | ||
| height={"400px"} | ||
| objectFit={"cover"} | ||
| /> | ||
| </Box> | ||
| <Button colorScheme="blue" onClick={identify} isLoading={isModelLoading}> | ||
| {isModelLoading ? "Model Loading..." : "Identify image"} | ||
| </Button> | ||
| </VStack> | ||
| {results && results.length > 0 && ( | ||
| <VStack gap="10px" alignItems={"flex-start"}> | ||
| {results.map((result, index) => { | ||
| // Splitting className by "," | ||
| const classNames = result.className.split(","); | ||
|
|
||
| return ( | ||
| <VStack | ||
| alignItems={"flex-start"} | ||
| padding={"10px"} | ||
| borderWidth="1px" | ||
| borderColor={"#333"} | ||
| width={"full"} | ||
| key={result.className} | ||
| bg={index === 0 ? "#333" : "transparent"} | ||
| color={index === 0 ? "white" : "#333"} | ||
| > | ||
| <HStack flexWrap={"wrap"} alignItems={"flex-start"}> | ||
| {classNames.map((className, i) => ( | ||
| <Link | ||
| to={`/dictionary?q=${className.trim()}`} | ||
| target="_blank" | ||
| key={i} | ||
| style={{ | ||
| textDecoration: "none", | ||
| }} | ||
| > | ||
| <Heading | ||
| fontSize={"xl"} | ||
| textTransform={"uppercase"} | ||
| display={"inline-block"} | ||
| _hover={{ color: index === 0 ? "yellow" : "blue" }} | ||
| > | ||
| {className.trim()} | ||
| {i !== classNames.length - 1 && ", "} | ||
| </Heading> | ||
| </Link> | ||
| ))} | ||
| </HStack> | ||
| <span className="confidence"> | ||
| Confidence level: {(result.probability * 100).toFixed(2)}%{" "} | ||
| {index === 0 && <span className="bg-white text-[#333] px-1">Best Guess</span>} | ||
| </span> | ||
| </VStack> | ||
| ); | ||
| })} | ||
| </VStack> | ||
| )} | ||
| </VStack> | ||
| </div> | ||
| )} | ||
| {history.length > 0 && ( | ||
| <VStack | ||
| marginTop={"30px"} | ||
| bg={"blue.200"} | ||
| paddingX={"10px"} | ||
| paddingY={"20px"} | ||
| gap={"10px"} | ||
| alignItems={"flex-start"} | ||
| > | ||
| <Heading size={"lg"}>Recent images</Heading> | ||
| <Grid templateColumns={{ base: "repeat(2, 1fr)", lg: "repeat(3, 1fr)", xl: "repeat(5, 1fr)" }} gap={"0px"}> | ||
| {history.map((image, index) => { | ||
| return ( | ||
| <div key={`${image}${index}`}> | ||
| <img | ||
| src={image} | ||
| alt="Recent Prediction" | ||
| onClick={() => setImageURL(image)} | ||
| className="h-[200px] w-full object-cover cursor-pointer" | ||
| /> | ||
| </div> | ||
| ); | ||
| })} | ||
| </Grid> | ||
| </VStack> | ||
| )} | ||
| </div> | ||
| ); | ||
| }; | ||
|
|
||
| export default LearnThroughImagesPage; |
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