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Bael 7839 (#16426)

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* BAEL-7765: How to fix JsonParseException: Unexpected character (code 115) when parsing unquoted JSON in Jackson

* BAEL-7839: Converting Image to BufferedImage in Java

* BAEL-7839: Converting Image to BufferedImage in Java
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ACHRAF TAITAI 2024-04-25 18:36:41 +02:00 committed by GitHub
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commit c571579a55
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2 changed files with 1 additions and 29 deletions
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15
image-processing/src/main/java/com/baeldung/imageprocessing/imagetobufferedimage/ImageToBufferedImage.java
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@ -1,10 +1,7 @@
package com.baeldung.imageprocessing.imagetobufferedimage; package com.baeldung.imageprocessing.imagetobufferedimage;
import javax.imageio.ImageIO;
import java.awt.*; import java.awt.*;
import java.awt.image.BufferedImage; import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class ImageToBufferedImage { public class ImageToBufferedImage {
@ -25,17 +22,7 @@ public class ImageToBufferedImage {
if (image instanceof BufferedImage) { if (image instanceof BufferedImage) {
return (BufferedImage) image; return (BufferedImage) image;
} else { } else {
throw new ClassCastException("Image type is not compatible with BufferedImage"); throw new ClassCastException("Image type is not compatible with BufferedImage.");
}
}
// Method 3: Using ImageIO Class
public BufferedImage convertUsingImageIO(String filePath) throws IOException {
try {
File file = new File(filePath);
return ImageIO.read(file);
} catch (Exception e) {
throw new IOException("Error reading image file: " + e.getMessage());
} }
} }
} }

15
image-processing/src/test/java/com/baeldung/image/resize/imagetobufferedimage/ImageToBufferedImageIntegrationTest.java
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@ -50,20 +50,5 @@ public class ImageToBufferedImageIntegrationTest {
Image image = new ImageIcon("src/main/resources/images/baeldung.png").getImage(); Image image = new ImageIcon("src/main/resources/images/baeldung.png").getImage();
converter.convertUsingCasting(image); converter.convertUsingCasting(image);
} }
@Test
public void whenConvertUsingImageIOWithValidFile_thenImageGeneratedWithoutError() throws IOException {
ImageToBufferedImage converter = new ImageToBufferedImage();
BufferedImage bufferedImage = converter.convertUsingImageIO("src/main/resources/images/sampleImage.jpg");
assertNotNull(bufferedImage);
assertEquals(image.getWidth(null), bufferedImage.getWidth());
assertEquals(image.getHeight(null), bufferedImage.getHeight());
}
@Test(expected = IOException.class)
public void whenConvertUsingImageIOWithInvalidFile_thenImageGeneratedWithError() throws IOException {
ImageToBufferedImage converter = new ImageToBufferedImage();
converter.convertUsingImageIO("invalid_file.jpg");
}
} }