쉐도잉 연습: Every Major Image Format Explained in 8 Minutes - 영상으로 영어 말하기 배우기
레슨 만드는 중...
1
JPEG.
2
JPEG or JPG is the most widely used image format in the world, and it's the default format your phone camera saves photos in.
3
And as so you know, JPEG and JPG are actually the exact same thing.
4
The reason you sometimes see JPG instead of JPEG is because older Windows systems could only handle three -letter file extensions.
5
Therefore, the letter E was excluded.
6
Anyway, back before jpeg existed image files were so massive that sending
7
or storing photos was a nightmare especially with the slow limited
8
storage of early computers that's why jpeg was created using lossy compression
9
that permanently throws away some of the image data your eyes
10
barely notice anyway just to shrink the file size down this is great for storage
11
and sharing since a jpeg can be a fraction of the size of the original image
12
but because jpeg throws away data permanently it's not ideal for editing
13
or zooming in since it becomes pixelated or blurry the moment you scale it up too much.
14
That's because JPEG is a raster image, and in case you don't know, image files actually come in two major types, raster and vector.
15
Raster images, like JPEG, are built out of a fixed grid of pixels, which means they lose quality and look blocky the moment you zoom in too far.
16
Vector images, on the other hand, are built from lines and curves defined by math instead of pixels
17
so they stay perfectly sharp no matter how big you scale them up
18
which is why logos and icons are often made as vector files instead also saving
19
and resaving a jpeg multiple times like after repeated edits keeps degrading the quality a little more each time
20
but despite that jpeg remains the go -to for photographers social media
21
and basically anyone who just needs a decent looking photo without
22
the file size ballooning png png short for portable network graphics
23
was created to fix the one thing jpeg could never do
24
well keeping an image perfectly sharp without losing quality no matter how many times you save it
25
so unlike jpeg's lossy compression png uses lossless compression instead
26
which means it shrinks the file size without throwing away any of the original data.
27
And on top of that, PNG also supports transparency, which lets you make part of an image completely invisible, which is why logos, icons,
28
and layered designs are almost always saved as PNG.
29
But because PNG doesn't throw anything away, the file sizes end up much bigger than a JPEG of the same image, especially for photos with a lot of detail and color variation.
30
That's why PNG isn't really used for photography, but it's still the standard for screenshots, graphics and anything
31
that needs a transparent background gif gif short for graphics interchange
32
format is the format everyone recognizes for short looping animations
33
and it's used everywhere from memes to reaction clips
34
so the way gif pulls off animation is by storing multiple image frames inside one single file
35
and then displaying them one after another in a loop
36
but despite being
37
so widely used gif has one major limitation it can only
38
display 256 colors at once this is why gifs often look grainy
39
or slightly off color compared to the original video they were
40
made from since a lot of color detail simply gets lost
41
in the process webp webp is a format created by google specifically to make websites load faster
42
and it's slowly replacing both jpeg and png on modern sites.
43
So the way WebP achieves this is by combining JPEG's small file size with PNG's transparency support, all in one format.
44
This means a website can use a single format for both photos and transparent graphics instead of juggling two different ones.
45
And because WebP compresses more efficiently than JPEG, images can be up to 30 % smaller at a similar quality level,
46
which is a big deal for how fast a page loads on your phone.
47
But despite all these advantages, Not every app, program, or older device fully supports WebP yet,
48
which is why some people still convert WebP images back to JPEG
49
or PNG just to make sure they'll open everywhere without issues.
50
TIFF.
51
TIFF, or T -I -F, short for Tagged Image File Format, is a format built specifically for professionals in printing,
52
publishing, and photography who need the absolute highest image quality possible.
53
So just like PNG, TIFF supports lossless compression, but it goes even further by supporting multiple layers,
54
high color depth, and even multiple pages inside a single file.
55
This is why TIFF is the standard format for scanned documents and print -ready photography, since printing companies need every tiny detail preserved with zero compression artifacts.
56
But remember, because it stores so much data, TIFF files can get enormous, sometimes hundreds of megabytes for just one high -resolution image.
57
And not only that, TIFF also isn't well supported by web browsers, so you'll basically never see a TIFF file used on a website.
58
That's why, despite being the gold standard for print quality, Most people convert their TIFF files to JPEG or PNG the moment they need to share them online.
59
The BMP or Bitmap is one of the oldest image formats still around, and it's been built into Windows since the very early days of the operating system.
60
So the way BMP works is it stores every single pixel's color information directly with basically no compression at all.
61
This is why BMP images look perfectly sharp with zero quality loss, but it also means the file sizes are massive,
62
sometimes several times bigger than the exact same image saved as a JPEG or PNG.
63
Because of this, BMP isn't really practical for sharing images online or storing large photo libraries,
64
but it's still occasionally used in situations where speed matters more than file size, like certain image processing software,
65
since the computer doesn't have to spend time decompressing anything before it can read the pixels.
66
Other than that, though, most people today have basically no reason to use BMP anymore.
67
H -E -I -F and H -E -I -C.
68
H -E -I -C, short for High Efficiency Image Container, is the format Apple made the default for photos on iPhones.
69
So the reason Apple switched to this was because JPEG, despite being everywhere, hadn't really improved in decades, while phone cameras were producing bigger and bigger photos every year.
70
H -E -I -C solves this by using a much more advanced compression method the same one used in video
71
which lets it store a photo at roughly half the file
72
size of a jpeg with basically the same quality not only
73
that hiec can also store multiple images
74
or a live photos motion frames inside a single file but
75
because it's still fairly new outside the apple ecosystem heic isn't well supported on windows
76
or many websites avif avif is the newest image format on this list
77
and it's built on the same av1 video technology
78
that platforms like youtube use to stream video more efficiently
79
so just like heic avif can compress images down to a fraction of a jpeg size
80
while keeping the same visual quality but the difference is avif is completely open
81
and royalty free
82
which means any company can use it without paying licensing fees
83
this is why avif is quickly becoming the preferred format for major websites since smaller images mean faster loading pages.
84
However, encoding and decoding AVIF images takes more processing power compared to older formats,
85
and just like HEIC, not every app or image viewer supports it yet, so you'll sometimes run into an AVIF file that simply won't open.
86
But as more browsers and devices catch up, AVIF is expected to slowly become the standard, especially for the web.
87
Oh yeah, JFIF, which stands for jpeg file interchange format isn't really a separate
88
image format on its own it's more like a wrapper
89
that defines exactly how a jpeg file should be structured
90
so the way this works is jfif locks down details
91
that regular jpeg left undefined like resolution aspect ratio and color space
92
so a jpeg saved on one program looks the same
93
when it's opened on a completely different device this is why
94
technically almost every jpg file you've ever opened is actually a jfif file underneath you might have noticed this yourself
95
if you've ever right clicked
96
and saved an image from chrome since sometimes it saves as .jff instead of .jpg
97
because chrome is technically labeling the file by what's actually inside it
98
but despite being the exact same compression jfif can cause small compatibility headaches since some upload forms
99
or older programs only look for a .jpg or .jpeg extension and reject a .jfif file even though it's identical data.
100
So yeah, if that happens, you can literally just rename the extension and it'll work fine.
✨ 추천 영상
B21
205 문장
ZV-E10 Low Light - Best Picture Profile
Business EnglishUniversity StudentsWorking Adults
B24
12 문장
Introducing GPT-Image-2.5 in the API
Business EnglishUniversity StudentsWorking Adults
B11
28 문장
Network Ports Explained
Business EnglishUniversity StudentsWorking Adults
B21
157 문장
How A Graphic Designer MUST Think in 2026 To Survive!
Business EnglishUniversity StudentsWorking Adults
B21
206 문장
What is Master Data Management? MDM Explained for Beginners
Business EnglishUniversity StudentsWorking Adults
B21
245 문장
New iPhone 18 Pro: Everything announced about the iPhone with the best camera and battery life ever
Business EnglishUniversity StudentsWorking Adults
C11
27 문장
You are wasting memory
Business EnglishUniversity StudentsWorking Adults
B21
339 문장
Making Composition Mistakes? Here Is How To Fix Them
Business EnglishUniversity StudentsWorking Adults
B21
114 문장
The DaVinci Takeover: Why Millions Are Deleting Adobe
Business EnglishUniversity StudentsWorking Adults
B21
129 문장
BEST Cartoon Effect in Photoshop
Business EnglishUniversity StudentsWorking Adults
B22
211 문장
USB4 is a Glorious Mess
Business EnglishUniversity StudentsWorking Adults
B21
125 문장
Why Chatbots Understand You (And Why They Don't) | NLP Explained
Business EnglishUniversity StudentsWorking Adults
이 비디오는 누구를 위한 건가요?
영상 영어 공부를 시작하려는 초중급 학생이나, 일상적인 설명문을 자연스럽게 말하는 실력을 키우고 싶은 분들에게 딱 맞는 콘텐츠입니다. 이미지 형식에 대한 기본 지식도 쌓고, 영어로 정보를 전달하는 방식을 배울 수 있어 두 마리 토끼를 잡는 효과가 있습니다. 특히 shadow speak 연습에 좋은데, 짧은 문장과 명확한 구조가 반복되기 때문에 따라하기 쉽거든요.
빼놓을 수 없는 단어와 관용구
- lossy compression: "손실 압축"으로, 이미지 데이터 일부를 버려 파일 크기를 줄이는 방식
- raster image: "래스터 이미지", 픽셀 그리드로 구성된 이미지로 확대하면 화질이 깨짐
- transparency support: "투명도 지원", 이미지 일부를 완전히 보이지 않게 하는 기능
- file size ballooning: "파일 크기 폭발", 이미지 크기가 너무 커지는 현상
이 단어들은 기술적인 내용을 설명할 때 자주 쓰이니, 영어로 설명하는 연습을 해보세요.
발음을 올바르게 하는 방법
이 비디오의 스피커는 명확한 미국식 발음을 사용하므로, 영어 발음 교정에 좋습니다. 특히 jpeg, png와 같은 약어의 발음을 주의해야 해요. "JPEG"는 /ˈdʒeɪpeɡ/로 발음하고, "PNG"는 /piːenˈdʒiː/입니다. 또한 "compression" (/kəmˈpreʃn/)과 "transparency" (/trænsˈpærənsi/)와 같은 긴 단어는 음절을 분리해서 연습하세요. Shadow speak를 할 때는 스피커의 말을 0.5초 지연시켜 따라하는 것이 좋은데, shadowing site에서 연습하면 더 효과적입니다. Shadowspeaks와 같은 방법을 사용해 리듬과 억양을 익히면, 자연스러운 발음을 배울 수 있습니다.
실제로 연습해보기
영상 영어 공부의 핵심은 반복입니다. 이 비디오를 여러 번 보면서 스피커의 말을 따라하고, 자신이 설명하는 것처럼 말해보세요. "JPEG is the most widely used image format..."와 같은 문장을 shadowing 해보면, 정보 전달 능력도 향상됩니다. 특히 파일 형식의 차이를 설명하는 부분은 논리적인 구조가 뚜렷하니, 따라하기 쉬워요. 작은 부분부터 차근차근 연습하면, 영어로 설명하는 실력이 점점 늘어날 거예요.
이 영상의 문법
화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.
| 문형 | 영상 속 표현 |
|---|---|
| 수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점 | was excluded · was created · are built |
| 관계절 who / which + 절 — 사람이나 사물에 대한 추가 정보 | pixels, which means · anyone who just · invisible, which is |
쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법
쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.