<form id="resimyukle">
        <input type="file" name="Resim" accept="image/png, image/jpg, image/jpeg" >
        <input type="text" name="Aciklama">
        <select name="Dizin">
            <option value="Dizin1">Dizin 1</option>
            <option value="Dizin2">Dizin 2</option>
        </select>
     <button type="submit">Resmi Yükle</button>
    </form>
    
    <script>
        $("#resimyukle").on('submit', function(event) {
            event.preventDefault();
            var form = $(this);
            var formData = new FormData($(form)[0]);
            $.ajax({
                url: 'ajax.php',
                type: 'POST',
                dataType: 'json',
                processData: false,
                contentType: false,
                data: formData,
                success: function(intero) {
                  console.log(intero.message);
                }
            })
        })
    </script>