src/main/java/org/apache/commons/imaging/formats/pnm/PgmWriter.java [41:60]:
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        os.write(PnmConstants.PNM_SEPARATOR);

        final int width = src.getWidth();
        final int height = src.getHeight();

        os.write(Integer.toString(width).getBytes(StandardCharsets.US_ASCII));
        os.write(PnmConstants.PNM_SEPARATOR);

        os.write(Integer.toString(height).getBytes(StandardCharsets.US_ASCII));
        os.write(PnmConstants.PNM_SEPARATOR);

        os.write(Integer.toString(255).getBytes(StandardCharsets.US_ASCII)); // max component value
        os.write(PnmConstants.PNM_NEWLINE);

        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                final int argb = src.getRGB(x, y);
                final int red = 0xff & (argb >> 16);
                final int green = 0xff & (argb >> 8);
                final int blue = 0xff & (argb >> 0);
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src/main/java/org/apache/commons/imaging/formats/pnm/PpmWriter.java [41:60]:
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        os.write(PnmConstants.PNM_SEPARATOR);

        final int width = src.getWidth();
        final int height = src.getHeight();

        os.write(Integer.toString(width).getBytes(StandardCharsets.US_ASCII));
        os.write(PnmConstants.PNM_SEPARATOR);

        os.write(Integer.toString(height).getBytes(StandardCharsets.US_ASCII));
        os.write(PnmConstants.PNM_SEPARATOR);

        os.write(Integer.toString(255).getBytes(StandardCharsets.US_ASCII)); // max component value
        os.write(PnmConstants.PNM_NEWLINE);

        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                final int argb = src.getRGB(x, y);
                final int red = 0xff & (argb >> 16);
                final int green = 0xff & (argb >> 8);
                final int blue = 0xff & (argb >> 0);
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