如何将八位字节流转换为图像

Question

I have a bunch of files in.ikc format:

File Type: data MIME;

Type: application/octet-stream;

Suggested file extension(s): bin lha lzh exe class so dll img iso.

They should have been svg images, supposedly, but I couldn't find an online converter that worked. Is there a way to convert octet-stream to svg or png images?

Aside from online converters, I tried:

(async () => {
  const res = await fetch('https://httpbin.org/image/png')
  const blob = await res.blob()
  const img = new Image()
  img.src = URL.createObjectURL(blob)

  // newer promise based version of img.onload
  await img.decode()
  
  document.body.append(img)

  // Don't forget to revoke the blob url when 
  // you no longer need it (to release memory)
  URL.revokeObjectURL(img.src)
})()

Nothing happened, but I don't know how to adapt this better to my case.

First few lines of one of my files:

J�@^)T����
��;�\�E$��,SwU�KI
�x���j�4�.�V�   �
_�ؑiY�=l����<�M7l�Xq�f�~�x�@ɷ���|>���=UO#$nr����V38GQK��p

Used tomeko.net to convert the file to hexadecimal

0x4A, 0xEB, 0x13, 0x00, 0x40, 0x5E, 0x29, 0x1E, 0x54, 0xF6, 0xF6, 0xC0, 0xC2, 0x0F, 0x0A, 0xFB, 
0x90, 0x3B, 0xDB, 0x5C, 0xB9, 0x45, 0x24, 0x8A, 0xDA, 0x0B, 0x2C, 0x53, 0x77, 0x55, 0xBD, 0x4B, 
0x49, 0x7F, 0x0A, 0xC7, 0x1F, 0x78, 0x96, 0xFD, 0xFA, 0x6A, 0xA5, 0x34, 0x8C, 0x2E, 0x9C, 0x0C, 
0x56, 0x9D, 0x09, 0xB4, 0x0A, 0x5F, 0xE9, 0xD8, 0x91, 0x69, 0x59, 0xBB, 0x3D, 0x6C, 0xB2, 0x80, 

Does anyone know what to do with this?

Answer 1

You don't have to fetch the source and convert it yourself, you can use the Image API regularly:

 const image = new Image(); image.src = "https://httpbin.org/image/png"; image.decode().then(() => { document.body.append(image); });