The reason why the converted DICOM displays as blank after converting from RAW format might be attributed to the following factors:

[wangmingche]

escription
When converting a raw format file to DICOM using the provided program, the resulting output.dcm file appears as a blank/black image when viewed in a DICOM browser.

Environment
Go version: 1.22.0
dicom library version: github.com/suyashkumar/dicom v1.0.7
Steps to Reproduce
Prepare a raw format file.
Use the provided program to convert the raw file to DICOM.
View the resulting output.dcm file in a DICOM browser.
Expected Behavior
The converted DICOM image should display properly, showing the content of the original raw format file.

Actual Behavior
The converted DICOM image appears as a blank/black image when viewed in a DICOM browser.

`

    rawFile := "./Fppic_00001615_2024y04m04d18h00m10s_SNAGA39V30E954.raw"
rawData, err := ioutil.ReadFile(rawFile)
if err != nil {
	fmt.Printf("Failed to read RAW file: %v\n", err)
	return
}
fmt.Printf("rawData:%d\n",len(rawData))

//PixelDataInfo
    pixelDataInfo := dicom.PixelDataInfo{
	  IntentionallyUnprocessed: true,
	  UnprocessedValueData:     rawData,
  }

// 设置 DICOM 元数据
elements := []*dicom.Element{
	dicom.MustNewElement(tag.SOPClassUID, []string{"1.2.840.10008.5.1.4.1.1.2"}),
	//GenerateUID
	dicom.MustNewElement(tag.SOPInstanceUID, []string{"1.2.840.113619.2.55.3.279721844.297.1204122294.826.1"}),
	dicom.MustNewElement(tag.PatientName, []string{"ceshiwang"}),
	dicom.MustNewElement(tag.PatientID, []string{"123456"}),
	//dicom.MustNewElement(tag.StudyInstanceUID, Uuid),
	//dicom.MustNewElement(tag.SeriesInstanceUID, Uuid),
	dicom.MustNewElement(tag.StudyID, []string{"4007"}),
	dicom.MustNewElement(tag.Modality, []string{"CR"}),
	dicom.MustNewElement(tag.Manufacturer, []string{"DATU MEDICAL"}),
	dicom.MustNewElement(tag.Rows, []int{512}),
	dicom.MustNewElement(tag.Columns, []int{512}),
	dicom.MustNewElement(tag.BitsAllocated, []int{16}),
	dicom.MustNewElement(tag.BitsStored, []int{16}),
	dicom.MustNewElement(tag.HighBit, []int{15}),
	dicom.MustNewElement(tag.PixelRepresentation, []int{0}),
	dicom.MustNewElement(tag.PixelData,pixelDataInfo),
}
dicomDataSet := dicom.Dataset{Elements: elements}

var buffer bytes.Buffer
if err := dicom.Write(&buffer, dicomDataSet,dicom.DefaultMissingTransferSyntax()); err != nil {
	fmt.Printf("Failed to write DICOM file: %v\n", err)
	return
}
// 保存 DICOM 文件
dicomFile := "output.dcm"
if err := ioutil.WriteFile(dicomFile, buffer.Bytes(), 0644); err != nil {
	fmt.Printf("Failed to save DICOM file: %v\n", err)
	return
}

fmt.Printf("DICOM file saved: %s\n", dicomFile)

`

[suyashkumar]

Hi there, it's because we don't have autoscaling, but you can apply scaling on your own if you'd like, more details #301 (comment)