Độ nét của hình khá tốt.

Vietnamese often does not use a present-tense copula like English is when describing something with an adjective.

So the pattern is:

• Độ nét của hình = the sharpness of the image
• khá tốt = fairly good

Put together, it works like:

• Độ nét của hình khá tốt.
• literally: The image’s sharpness fairly good
• natural English: The image sharpness is fairly good

This is very normal Vietnamese sentence structure.

Độ nét means sharpness, clarity, or definition, especially for an image, photo, screen, or video.

A useful way to think about it is:

• độ = degree, level
• nét = sharpness, fine detail, clear lines

So độ nét is literally something like the level of sharpness.

In camera, screen, and image contexts, this is a very common expression.

Của marks possession or a relationship similar to English of.

So:

• độ nét của hình = the sharpness of the image

It connects the noun phrase độ nét with hình.

Compare:

• màu của áo = the color of the shirt
• chất lượng của máy = the quality of the machine
• độ nét của hình = the sharpness of the image

In English, this relationship can often be translated either with of or with a noun used like an adjective:

• the sharpness of the image
• the image sharpness

Here, hình means image, picture, or sometimes photo, depending on context.

It overlaps with ảnh, but they are not always exactly the same:

• ảnh usually means photo
• hình can mean picture/image more generally
• hình ảnh is a broader term for image/visual image

So in a sentence about display or picture quality, hình is very natural.

For example:

• Độ nét của ảnh khá tốt = The photo’s sharpness is fairly good
• Độ nét của hình khá tốt = The image’s sharpness is fairly good

Both can work, but hình may sound a little broader.

Khá means fairly, quite, or rather.

So khá tốt means:

• fairly good
• quite good
• reasonably good

It is weaker than rất tốt:

• khá tốt = fairly good
• rất tốt = very good

So the sentence sounds a bit moderate, not overly strong. It suggests a positive evaluation, but not the strongest possible one.

Because tốt is the main predicate adjective of the sentence.

Vietnamese often puts the thing being talked about first, and then the description after it:

• Độ nét của hình = topic / subject
• khá tốt = comment / description

So the structure is basically:

• [noun phrase] + [adjective phrase]

This is very common in Vietnamese:

• Thời tiết hôm nay đẹp. = The weather today is nice.
• Món này ngon. = This dish is tasty.
• Độ nét của hình khá tốt. = The image sharpness is fairly good.

Yes, you could, but the nuance changes.

• khá tốt = fairly good
• khá cao = fairly high

With độ nét, both can make sense:

• độ nét khá tốt evaluates the sharpness as good in quality
• độ nét khá cao talks about the level being high

So:

• Độ nét của hình khá tốt sounds like a natural quality judgment
• Độ nét của hình khá cao sounds a bit more technical or measurable

Both are possible, but khá tốt is a broader, more everyday evaluation.

Yes, it is natural, especially in contexts like:

• talking about a screen
• reviewing a camera
• describing a photo or video
• discussing image quality

But Vietnamese speakers might also say similar things in simpler ways, such as:

• Hình khá nét. = The image is fairly sharp.
• Hình này khá rõ. = This image is fairly clear.
• Ảnh này nét khá tốt. = This photo has pretty good sharpness.
• Hình có độ nét khá tốt. = The image has fairly good sharpness.

So your sentence is natural, but there are several common alternatives depending on style and context.

Sometimes yes, but they are not identical in feel.

• độ nét sounds common, practical, and often a bit technical
• sự sắc nét means sharpness too, but sounds a little more formal or abstract

For example:

• Độ nét của hình khá tốt = natural and common
• Sự sắc nét của hình khá tốt = understandable, but a little less natural in everyday technical talk

In many real situations, độ nét is the more idiomatic choice.

Yes. Hình khá nét is a very natural shorter version.

The difference is:

• Độ nét của hình khá tốt focuses on sharpness as a quality
• Hình khá nét directly says the image is fairly sharp

So the shorter sentence is more conversational, while the original sounds a bit more descriptive or evaluative.

Both are correct; the choice depends on tone and context.

They are similar, but there is a slight difference in feel:

• khá tốt = fairly good / quite good
• tương đối tốt = relatively good / reasonably good

Tương đối tốt can sound a bit more cautious or analytical.
Khá tốt sounds more natural in everyday speech.

So in many normal situations, khá tốt is the more common choice.

A few pronunciation points matter here:

• Độ has a heavy falling tone on ộ
• nét has a rising sắc tone
• của has a hỏi tone
• hình has a huyền tone
• khá has a sắc tone
• tốt has a sắc tone

A rough pronunciation guide for English speakers might be:

• Độ ≈ doh, with a heavy low tone
• nét ≈ net, with a rising tone
• của ≈ koo-uh, with a dipping tone
• hình ≈ hinh, with a low falling tone
• khá ≈ kha, rising
• tốt ≈ tote, rising and clipped

Also remember:

• đ is like a regular English d
• plain d in Vietnamese is different and often sounds like z in northern speech

So Độ begins with a normal d sound, not a z sound.

The structure is:

• Độ nét = sharpness
• của hình = of the image
• khá tốt = fairly good

So overall:

• [noun phrase] + [adjective phrase]

More specifically:

• Độ nét của hình = the sharpness of the image
• khá tốt = is fairly good

This is a very common Vietnamese pattern for making descriptive statements.